40 numbered A4 size pages of high quality gloss paper but in fact 43 pages because the inner side of the front cover and the both sides of the back cover are fully utilized with drawings, text and photos. By using a small font much information and many photos is succeeded to be crammed on those 43 pages.
30 colour profiles
one 5-view colour drawing  
1:72 scale 5-view line drawing of standard production model, two profile line drawings (Long Range Development Unit version and standard plane with extended cockpit canopy) and a scrap profile of the Bristol Hercules HE 18 powered prototype.

I bought a second-hand copy of this publication. It was fairly cheap and I have been interested in Wellesley since I saw the box art of the Matchbox plastic model of it as a teenager. The main reasons to buy the copy were the geodetic construction of Wellesley (Vickers Wellington has always been one of my many favourite planes) which is well illustrated and explained in the booklet and the very reasonable price of it. And I wasn’t disappointed, the publication is very good in explaining the geodetic construction of Wellesley and the use of the plane by the RAF. The main operational area for Wellesley during the Second World War was the Horn of Africa during the East Africa Campaign 10 June 1940 – 27 November 1941.

There is not much to complain, some small details, e.g. the fact that all escorts of the convoy BN 3 are given as HMS Xxxx, in other words as Royal Navy ships when in fact the light cruiser HMS Leander had been HMNZS Leander since 1933 and there was no HMS Parramatta but HMAS Parramatta.

On the pages 32 – 33 the story on the occasion on 21 October 1940 when according to White a Wellesley crew got eight light bomb hits on an Italian destroyer putting it out of commission for a while somewhere near the Straits of Mandeb. The place is given as off Haleah Island, probably same as Halib Island. I cannot find any confirmation to this from any of the sources I have in my possession. But on the same day according to the British Official History, Playfair et al page 248, the Italian destroyer Francesco Nullo was driven ashore near Massawa by the Royal Navy and was subsequently bombed and destroyed by three Bristol Blenheims of No. 45 Squadron. Rohwer’s & Hummelchen’s Chronology of the War at Sea, 1939–1945 on page 39 gives essentially the same info and confirming that the three Blenheims destroyed the ship on 21 October 1940. Wiki and wrecksite.eu confirmed the story and give the exact place, on Harmi Island. It, also known as Harmil Island, lays NE of Massawa while Halib Island is SE of Assab, so a considerable distance to SSE. The Italian destroyers in Red Sea area usually operated from Massawa and nothing I have seen on the operational history of the seven Italian Red Sea destroyers implicates that any other of them but Francesco Nullo would have been damaged on 21 October 1940. But the damage to that unidentified destroyer might have been so light that it is not mentioned in any of my source. Or the ship was not a destroyer but a smaller ship. It is certainly not unheard that aircrews claimed hitting a much larger vessel than their real target was whether they hit it or not. Even the fate of Francesco Nullo is not entirely clear. While Langtree in his The Kelly’s on page 109 claims that Francesco Nullo was sunk by a torpedo from HMS Kimberley off Harmil Island after the latter had disabled it with gunfire. This is agreed by Conway’s All the World’s Fighting Ships 1922-1946 but according to Whitley while agreeing that HMS Kimberley forced Francesco Nullo ashore he agrees with the Playfair et.al. and several other sources that after that the Italian ship was bombed and destroyed by the RAF. Strangely neither Shores in his Dust Clouds in the Middle East nor Warner in his The Bristol Blenheim mention this action even if this would have been a significant success to the RAF and particularly to the Blenheim unit if the ultimate destruction of a 1058 tons destroyer was their achievement.

On November 16, 1940 according to Shores and the FlyPast Special one Wellesley (L2695) failed to return from a bombing sortie against Massawa. White only mentions that three Wellesleys were sent to bomb Gura, circa 75 km SSE Massawa and did that without a loss. The anti-aircraft defences of Massawa claimed one Aden-based bomber shot down during a raid. The Wellesley was a part of the small on Prim Island based detachment of No. 223 Squadron. Perim Island situates circa 170 km West of Aden.

On 3 April 1941, there were only five Italian destroyers putting to sea for a raid because the sixth had ran aground earlier. And one of them aborted the mission early because of engine trouble, of the remaining four two were sunk by Swordfishes of HMS Eagle. Later five Wellesleys of the 223 Squadron attacked the remaining destroyers Tigre and Pantera while they were at anchor off Saudi Arabia coast south of Jeddah and transferring fuel and ammunition from Tigre to Pantera in order to scuttle Tigre and continue the operation only with Pantera. The attack foiled the Italian plan and their commander ordered abandonment and scuttling of both destroyers. The Wellesleys might well have sunk Tigre, which the Italians were already abandoning. Pantera might has been sunk by the British destroyer HMS Kingston. But it may be that both of the destroyers were already scuttled as the Italians claim.

The last active Wellesley unit was the No.47 Squadron Air Echelon flying A/S and convoy protection sorties over the Eastern Mediterranean from late April 1942 to the end of February 1943.

Tables:
Vickers Wellesley Production & Serial Numbers
Vickers Wellesley Technical & Performance Characteristics, there is an error in converting the capacity of the two auxiliary tanks of Wellesley from imperial gallons to litres which gives ten times too much volume in litres.
Vickers Wellesley Units & Representative Aircraft
Vickers Wellesley Units & Bases
Vickers Wellesley Kits and Decals

Two maps: the area of the East Africa Campaign, or the Horn of Africa and The Eastern Mediterranean.
The map of the area of the East Africa Campaign shows the locations of several Eritrean places mentioned in the text but of those locating in Abyssinia or British Somaliland only the locations of both capitals are shown. 

Airplanes with short production runs and fairly short service histories are good topics for books in the sense that their service histories are easy to describe in fairly short books. For example, describing the service history of the Messerschmitt Bf 109, Supermarine Spitfire, or Consolidated B-24 Liberator with the same accuracy would mean a massive series of thick books.

Barfield, Norman, Vickers Wellesley variants Aircraft Profile 256 (Windsor: Profile Publications, 1973).
Conway’s All the World’s Fighting Ships 1922-1946 (London: Conway Maritime Press, 1980).
FlyPast Special WELLINGTON Edited by Ken Ellis (Stamford: Key Publishing 2013).
Langtree, Christopher, The Kelly’s British J, K, & N Class Destroyers of World War II (Annapolis: Naval Institute
     Press, 2002).
Mason, Francis K, The British Bomber since 1914 (London: Putnam, 1994).
Orange, Vincent et.al., Winged Promises: History of No.14 Squadron, RAF 1915-1945 (London: The Royal Air
     Force Benevolent Fund Enterprises, 1996).
Playfair, Major-General I. S. O. et. al, The Mediterranean and Middle East Volume I (London: Her Majesty’s
     Stationery Offife, 1954).
Rohwer, Jürgen and Hummelchen, G., Chronology of the War at Sea, 1939–1945: The Naval History of World
   War Two (London: Greenhill Books, Second, revised, expanded edition 1992).
Roskill, Captain S.W., The War at Sea 1939 – 1945. Volume I The Defensive (London: Her Majesty’s Stationery
     Office, 1954).
Shores, Christopher, Dust Clouds in the Middle East. The Air War for East Africa, Iraq, Syria, Iran and
   Madagascar, 1940 – 42 (London: Grub Street, 1996).
Warner, Graham, The Bristol Blenheim A complete history (Manchester: Crecy Publishing, Second edition
     2005).
Whitley, M.H., Destroyers of World War Two: an international encyclopedia (Annapolis, Md: Naval Institute
     Press, 1988). 

http://www.wlb-stuttgart.de/seekrieg/40-10.htm
https://www.wlb-stuttgart.de/seekrieg/41-04.htm 
https://en.wikipedia.org/wiki/Attack_on_Convoy_BN_7 
https://en.wikipedia.org/wiki/Sauro-class_destroyer 
https://en.wikipedia.org/wiki/Leone-class_destroyer 
https://en.wikipedia.org/wiki/List_of_shipwrecks_in_October_1940#20_October http://www.wrecksite.eu/wreck.aspx?138168 

96 pages

The book begins with a short but interesting development history of the Pe-2. Interesting and to me new information on how Petlyakov got arrested in autumn 1937 and how long he resisted his interrogators before cracking and confessing his ‘anti-Soviet crimes’.

Then the story of how Petlyakov and his team designed the high altitude fighter/fighter-bomber ‘100’ while serving their time in the special prison, Special Technical Department of the NKVD. The plane was later radically redesigned to the dive-bomber PB-100, later re-designated as Pe-2. Also new to me was the information that the German air raids during summer of 1941 had effect on Pe-2 production. 

The authors go briefly through the main modifications of the Pe-2. One notice, KlimovM-105R vs PF, the poorer high altitude performance of the latter was the result not only of the poorer propeller efficiency but also of the lower full throttle height. According the authors the last big change to production Pe-2s was the changing of the shape of the leading edge of the outer wing section at the very end of 1944. My other Pe-2 sources say that these charges, designed Pe-2B, tested on Pe-2 c/n 19-223 and 14-226, were proved beneficial especially during take-off and landing, making them clearly easier and safer but because of the strong demand of Pe-2s it was decided not to disturb production by new outer wings and so the change was not implemented into production aircraft.

The combat descriptions are based predominantly only on Soviet information, but sometimes the authors has checked it against information from German documents. While I hope that authors would use sources of both sides so that readers would learn what really happened in this case the authors at least clearly state when given information is based solely on Soviet documents which is good and fair. And as said sometimes they give both the Soviet losses and claims and also the German claims and losses based on the information from German documents.

The 17 pages long Guards Bomber Air Regiments chapter is a bit list-like, but that is not surprising because the authors go through the combat histories of eight regiments. But it still shows how heavy and costly the first months, in fact even the first one and a half years of the Great Patriotic War were for the Soviet bomber units. E.g. 31st SBAP (later redesignated as 4th GvBAP), even if it dispersed all its SB bombers on the evening of 21 June 1941 and so none of its bombers was destroyed on the ground during Luftwaffe bombing raids the following morning, lost 88 percent of its original strength of 59 aircraft in less than a month. Of course also many successful operations are mentioned.

Interesting to note how effective the bombing attacks on Soviet airfields by the Luftwaffe were in Far North during the first couple months of the war when one thinks how meagre resources the Luftwaffe had there and they had no advance of surprise because the weather was very poor there during the first week of the Operation Barbarossa. The first attack on airfields was made on 23 June 1941 but only with two Ju 88s. I had seen the German claims earlier but because bomber crews often reported very optimistic results it is nice to have info on the real results.

On the page 17 “the port town of Vyborg and the railway station at Vipuri”, the latter should be Viipuri, and it is the Finnish name of the city which Russians call Vyborg.

The Mannerheim Line had been the main defensive line of the Finns during the Winter War (30 Nov. 1939 – 13 March 1940) but Soviets had blown up all those its bunkers that had not been destroyed during the fighting immediately after capturing them in mid-February 1940, so it did not have any significant defensive importance in 1944. The Finns’ main defensive line in Karelian Isthmus in 1944 was based on field fortifications because it was also the front line. Authors probably mean the VT-Line, which was Finns’ second defence line in 1944. It was partially completed line of permanent fortifications. But it was manned entirely by Finns. German reinforcements (a Sturmgeschütz-Brigade and an infantry division) arrived only after Soviets had broken through the VT-Line and conquered Viipuri/Vyborg.

On the bombing of the railway yards of Viipuri/Vyborg. The biggest attack was done by the ADD (Soviet long-range Air Force, their Bomber Command so to speak) when 142 of its planes bombed Viipuri during the night 14/15 June 1944 but the worst damage was achieved on 15 June, when 72 aircraft (Pe-2s, Il-4s and escort fighters) attacked on Maaskola railway yard at Viipuri/Vyborg and Karjala suburb, two ammunition trains were hit and began explode at Maaskola railway yard causing extensive damage. According to Inozemtsev, the 34th GvBAP (Guards Bomber Air Regiment) participated amongst others the quite an effective 17 June attack on Maaskola railway yard. It also made a rather ineffective, contrary to what crews reported, attack on Hovinmaa station on 19 June, the through pair of tracks was broken but it was repaired quickly. Only other results were a few damaged wooden houses and one wounded. And it seems that it participated the very effective raid on Elisenvaara railway yard on 20 June. There almost all of the tracks in the yard were damaged, only one thorough pair of tracks remained intact, 38  railway carriages and a couple engines were more or less damages, 167 people were killed, mostly civilians.
There were also other effective Pe-2 strikes in Finland during the June 1944 e.g. on 20 June bombing of Kirkonmaa which destroyed a mine depot, German mine transport ship ‘Otter’, two mine barges and eight motorboats. 

In the 13 pages long Guards Bomber Air Division chapter there are more descriptions of individual missions, both very successful and very costly ones and the developments of tactics used to reduce losses and increase effectiveness. But there were only two Pe-2 equipped Guards Bomber Air Division.

The authors explain the formation of the ‘punishment squadrons’ and their intended use. The punishments were much harsher with the Soviet and German armed forces than with the Western ones. And the battles on the Eastern front were bitterer.

I was surprised to learn that a recce squadron under 204th BAD (Bomber division) was still equipped with Su-2s in January 1943, then I remembered that while the type was at least mostly withdrawn from bomber and ground attack units by then it was still at that time used as a reconnaissance aircraft.

The massive attack by 3rd GvBAD on a German airfield on 14 September 1943 which according to Soviet intelligence information destroyed 50-55 German combat aircraft on Borovsk airfield (according to the caption on page 45) or on the airfield at Vorovsoye (according to the text on page 46) and according to the authors based on on German reports the Stukageschwader operating from the airfield temporarily lost its combat capability after as many as 20 of its Ju 87s were destroyed. Probably the unit hit was II./St.G. 1 which lost according to de Zeng IV and Stankey on the ground at Shatalovka-East airfield five Ju 87 Ds destroyed, seven more severely damaged and seven more moderately damaged and this reduced the Gruppe to the strength of a single Staffel. A loss of 20 planes did not usually made a circa 100 planes strong Geschwader inoperative but would critically weakened circa 33 aircraft strong Gruppe. Identifying places in ex-Soviet Union is sometimes difficult because Germans and Soviets sometimes used different names on certain locations and many places were renamed after fallen heroes after liberation.

Ps. I found out that I have more information on this attack.
Laurent Rizzotti 14th September 2009 16:31     Re: Soviet raid on Schatalowka airfield, 14 September 1943
 
Thanks Larry, that made the location of the action far clearer to me (and also explains why the two airfields were attacked at the same time, being only some km apart).

By the way I found on another Russian site a list of aircraft destroyed on the ground during this raid:
1./JG54   FW190A WNr 7053 - 20%
5./JG54   FW190A WNr 1092 - 30%
12./JG54  FW190A WNr 7277 - 100%
NAGr4    Bf109G-6 WNr 26006 - 40%; WNr 15891 - 10%; Bf108 WNr 2011 - 20%
II./StG1   Ju87D-3 WNr 1178 & 110865 - both 100%; WNr 110804 - 90%; WNr 110754 - 50%; WNr
          2675 – 40%; WNr 1241, 110036 & 110514 - all 20%
          Ju87D-5 WNr 130850, 130666 & 130761 - all 100%; WNr 130673 - 80%; WNr 130671 &                130670 - both 60%; WNr 130659 & 130851 - both 50%; WNr 130662 - 15%; WNr 130667 &              130672 - both 10%

So that made 10 aircraft destroyed/damaged beyond repair and 15 other damaged, not too bad.
The source: http://www.airwar.ru/history/av2ww/axis/germloss4/germloss9.html 

This information is from http://forum.12oclockhigh.net/showthread.php?t=18216

The chapter Guards Bomber Air Corps is also 13 pages long. The first one and a third pages of the chapter in fact tells the story of Aviation Armies, naturally mostly the 1st Bomber Aviation Army. When these were found too cumbersome it was decided to form less cumbersome Reserve Air Corps and 1st Bomber Aviation Army became 1st Bomber Air Corps (BAK) in September 1942 and became 2nd GvBAK on 5 February 1944. Again besides information on selected missions, both very successful and exceptionally costly, also on improvements in tactics. The other Guards Bomber Air Corps was 1st GvBAK, originally 2nd BAK which was formed October/November 1942 and became Guards formation on 3 September 1943. The famous 587th Women’s SBAP had became a seventh regiment of 2nd BAK by the end of 1942. At the end of June 1944 1st GvBAK was redesignated as 5th GvBAK in order to avoid numerical duplication as ADD merges with the VVS RKKA.

Next there is 16 pages of information on the guards reconnaissance units, reconnaissance was and is an important part of the aerial activity which often does not get the attention it deserves in aviation literature.

On the attack on Idriza airfield on 27 February 1944. On the Luftwaffe units based on Idritsa/Idriza airfield according to Henry L. deZeng IV; its anti-aircraft defence consisted only elements of gem.Flak-Abt. 294 at that time. So maybe the reports of dozens of flak batteries were exaggerating. What AA defences the nearby station and the town of Idritsa itself had I don’t know. Of the flying units based there 1. /Nahaufklärungsgruppe 5 had no losses in February 1944, 2./Nahaufklärungsgruppe 5 lost one Bf 109 G-6/U3 as destroyed or badly damaged by enemy action in February 1944 and sent one to overhaul. 1.(H)/Aufklärungsgruppe 31 lost one Fw 189 A-2 destroyed or badly damaged by enemy action in February 1944 and sent two to overhaul. I have no information of the possible losses of Nachtschlachtgruppe 1 but anyway it was not yet using Ju 87s but still using normal NSGr equipment, He 46s, Ar 66s etc.  According to Arro  Nachtschlachtgruppe 11 (estnisch) had left the airfield in early February 1944.
On the Ju 87 units of Luftflotte 1. I./SG 3 was based in February 1944 at Tartu/Dorpat, appr. 265 km NNW of Idriza. It lost (destroyed or badly damaged) in February 1944 five Ju 87 Ds because of enemy actions. 
II./SG 3 was based in February 1944 at Pskov/Pihkova appr. 170 km north of Idriza. It lost (destroyed or badly damaged) two Ju 87 Ds because of enemy actions in February 1944 and sent five other to overhaul. 
I./SG 5 was based in February 1944 at Korowje-Selo, 145 km north of Idriza and in February 1944 it lost (destroyed or badly damaged) three Ju 87 Ds because of enemy actions.
For the Germans Idriza airfield was a field airstrip (Feldflugplatz).

Not mentioned in the book but for comparison and because one Pe-2 guards unit mentioned in the book participated in it. On 2 July 1944, at Lappeenranta the attacking force consisted of 16 Pe-2s from 34th GvBAP and 36 Il-2s plus fighter escorts. Finns lost on ground two Bf 109 Gs and two war-booty Pe-2s and two Bf 109 Gs were so badly damaged that their repairs were completed only after the Continuation War. In this case Pe-2s dive bombed. At Immola, where Luftwaffe Gefechtsverband Kuhlmey was based, 44 Pe-2s made a level bombing attack and 28 Il-2s low-level attack. There three Finnish Brewster 239s were lost when a maintenance hangar was hit and burned. Germans lost nine planes: 4 Ju 87 Ds and 6 Fw 190s, and 15 of their other planes were very badly damaged, two less so and seven suffered only minor damage. In both cases bombing was accurate. At Immola the attack was more successful because the very well and cleverly planned attack using a feint and very carefully planned approach routes achieved complete surprise, only two of II./JG 54 Focke-Wulf Fw 190 As got airborne before Soviet planes attacked. So Il-2s could make three attacks. At Lappeenranta most of Finnish Bf 109 Gs were already airborne when Soviet attack force arrived and they began engage Il-2s during their first attack and so prevented any follow-up attacks.

While writing on the Lvov–Sandomierz Offensive the authors make overstatements. Army Group North Ukraine was forced to retreat but the fighting was hard and both sides suffered heavy losses, so it was not complete routed and while it lost, besides other losses, most of its XIII Corps in the Brody encirclement, it did not ceased to exist, it was simply renamed to Army Group A, probably mainly because it was mostly pushed out from Ukraine, northern half of it was fighting west of the Curzon Line, so definitely in Poland and the southern part on the north-eastern slopes of the Carpathians, so still just inside pre-1938 Poland or post-1945 Ukraine.

The last chapter is eight page long Guards Bomber Air Regiments of Naval Air Forces. The account of 73rd BAP KBF (later 12th GvBAP KBF), KBF = Soviet Baltic Fleet, attacks on the Narva railway bridge reminded me that I read decades ago a report of the Finnish liaison officer at the HQ of the Luftflotte 1 which informed the Finnish Air Force HQ of a German warning that the Soviet Air Force had several highly skilled units that could execute well planned and highly effective strikes, one example given was a cleverly and skilfully executed dive bombing attack on an important bridge somewhere in Baltic States. IIRC the attack began with low level attack, probably by Il-2s, against the bridge and the AA positions. When AA crews were distracted by this a sudden dive-bomber attack destroyed/badly damaged the bridge.

On the sinking of German 4,030 t, not 6,000 t as claimed in the caption of the front cover, AA ship (Schwimmende Flakbatterie / Flakschiff) Niobe in the port of Kotka on 16 July 1944. The high command of the Soviet Baltic Fleet Air Force was certain that Niobe would in fact be the Finnish coastal defence ship Väinämöinen, which has the displacement of 3,900 t, so it was almost the same size and sent a massive air group of 132 or 133 planes to sink it. The attack was well planned and executed and Niobe was sunk. According to Finns and some Soviet/Russian sources it was the four very low flying A-20Gs from the 51st Mine-Torpedo Aviation Regiment of the Baltic Fleet Air Force which achieved the fatal hits with two 1000 kg bombs. According to Kotelnikov and pseudonym Warjag at www.forum-marinearchiv.de Niobe was hit by two FAB-250s and two FAB-1000s. The former were dropped by Pe-2s and the latter by Bostons.  Niobe, ex- Gelderland, was originally a Dutch protected cruiser, not a coastal defence destroyer, the term used by the authors it the text, Finnish Väinämöinen was a coastal defence ship, a kind of mini-battleship. While in the authors used the right term on Väinämöinen in the text and the caption of the cover image, in the caption on the page 84 the term coastal defence destroyer is used. 

The authors also give three pages long description of the Operation Arcturus which consisted five big raids by the Baltic Fleet Air Force against the port of Liepaja/Libau in October and December 1944. Liepaja was the main supply port for the isolated German Army Group North, later renamed as AG Kurland. The description includes German defences, Soviet preparations, the Soviet planes participating the raid on 30 October, a recollection of one Soviet pilot of the 22 December raid, the number of German fighters usually participating the defence, German fighter pilots claims versus the real Soviet losses during a couple raids etc. There is also a table showing for each raid the number of Soviet aircraft participating, how many of these were Pe-2s or Il-2s, the total number of Soviet aircraft lost and the number of German ships claimed sunk. After the table in the text the results according to Germans.

The authors give a brief descriptions of the main organizational changes with the Soviet air forces and the beginning of the tradition of awarding the title of Guards units to combat units after a success in battle in September 1941. The first six aviation units were awarded the title on 6 December 1941.

One piece of Interesting information is that members of Guards units got 1½ - 2 fold increase in their financial allowances.

Many interesting but small photographs with informative captions. There are also a couple wartime instructional drawings on tactics used by Pe-2 units.

30 colour profiles by Andrey Yurgenson with several camo patterns and with interesting individual markings in ten cases.

There is one appendix in the book, Scheme of Pe-2 Guards units transition. It shows when units got their guards status, old and new unit designations and if the unit was formed after the beginning of the Great Patriotic war, 22 June 1941, roughly when it was formed. I did not check the table but noticed that of the naval units, in the table 34th Guards BAP previous designation is given as 34th BAP Baltic Fleet Air Force but in the text as 34th BAP of the Air Forces of the Pacific Fleet and that it stayed a part of that throughout the WW2.

In the book there are the following scale drawings: a 3-view of Pe-2 18th series, a 2-view of Pe-2R based on the 110th series and a side view of Pe-2R based on the 83rd series. And also an index, not all-encompassing but reasonably comprehensive.

So a good nice book on its subject, worth getting. The authors give numerous times the number of sorties, the amount of bombs dropped, the number of planes and aircrews lost and claimed results during the given timeframe by the given unit or formation.


Sources:
Sota-arkisto T 19280/49 Yhteysupseerien raportit LFl. 5 ja LFl. 1 22.06.41-27.12.42

Andersson, Lennart, Soviet Aircraft and Aviation 1917 – 1941 (London: Putnam Aeronautical Books,
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Geust, Carl-Fredrik, ’Neuvostoliiton kaukotoimintailmavoimat kesän 1944 suurhyökkäyksessä Karjalan
     kannaksella’, English summary ’The Soviet Long-range Air Force During the Great Offensive on the
     Karelian Isthmus in Summer 1944’, Sotahistoriallinen aikakauskirja 23 (2004) pp. 143 – 158.
Gordon, Yefim, Soviet Air Power in World War 2 (Hinckley: Midland Publishing, 2008).
Gordon, Yefim and Khazanov, Dmitri, Soviet Combat Aircraft of the Second World War. Volume Two
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Gordon, Yefim and Komissarov, Sergey, Ilyushin Il-2 and Il-10 Shturmovik (Ramsbury: Crowood Press, 2004).
Haapanen, Atso, Kesäsota . Suomen ilmavoimien sotalennot kesällä 1944 (Tampere: Apali, 2006).
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Kauranen, Heikki and Vesen, Jukka, Simolan pommitukset 19. – 20.6.1944 (Tampere: Apali, 2006).
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Lappi, Ahti, ’Viipurin ilmatorjunta’, Eero Elfvengren, Eeva Tammi (toim.) Viipuri 1944 (Helsinki: WSOY).
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Henry L. deZeng IV, Luftwaffe Airfields 1935-45 The Baltic States – Estonia, Latvia and Lithuania 
     http://www.ww2.dk/Airfields%20-%20Baltic%20States%20-%20Estonia,%20Latvia%20and%20Lithuania.pdf 
     extracted on 12 December 2020.

http://forum.axishistory.com/viewtopic.php?t=65762&highlight=niobe extracted on 20 October 2012.
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https://www.flightforum.fi/topic/30561-douglas-a-20-havoc-l%C3%B6ytynyt/   extracted on 11 October 2019.
https://www.forum-marinearchiv.de/smf/index.php?topic=1095.15  extracted on 4 December 2020.
http://www.kurkijoki.fi/kylat/elisen03/elis_v_pomm.html extracted on 11 November 2019.
https://en.wikipedia.org/wiki/Sukhoi_Su-2  extracted on 11 September 2020.
http://www.ww2.dk/air/attack/stg1.htm  extracted on 14 May 2011.
http://www.ww2.dk/oob/bestand/stuka/bststg1.html  extracted on 14 May 2011.
http://www.ww2.dk/oob/bestand/stuka/bistg1.html  extracted on 14 May 2011.
http://www.ww2.dk/oob/bestand/stuka/biistg1.html  extracted on 14 May 2011.
http://www.ww2.dk/oob/bestand/stuka/biiistg1.html  extracted on 14 May 2011.
http://www.ww2.dk/air/attack/stg2.htm  extracted on 23 June 2011.
http://www.ww2.dk/air/attack/stg77.htm  extracted on 1 October 2017.
https://ww2.dk/Airfields%20-%20Russia%20and%20Ukraine.pdf  extracted on 28 September 2020.
http://www.ww2.dk/Airfields%20-%20Baltic%20States%20-%20Estonia,%20Latvia%20and%20Lithuania.pdf 
     extracted on 12 December 2020.
https://ww2.dk/air/recon/nagr5.htm  extracted on 28 September 2020.
https://ww2.dk/oob/bestand/aufkl/bstnagr5.html  extracted on 28 September 2020.
https://ww2.dk/oob/bestand/aufkl/b1nagr5.html  extracted on 28 September 2020.
https://ww2.dk/oob/bestand/aufkl/b2nagr5.html  extracted on 28 September 2020.
https://ww2.dk/air/attack/nsgr11.htm  extracted on 28 September 2020.
https://www.ww2.dk/oob/bestand/aufkl/b1ag31.html  extracted on 28 September 2020.
http://www.ww2.dk/oob/bestand/jagd/bstjg54.html  extracted on 2 March 2009.
http://www.ww2.dk/oob/bestand/jagd/bijg54.html  extracted on 22 March 2009.
http://www.ww2.dk/oob/bestand/jagd/biijg54.html  extracted on 29 April 2013.