350 Squadron
Belgians in RAF and SAAF 1940-1945
Les Vieilles Tiges (VTB)
D.J. WATKINS DFC, CdeG. Obit. (By his son Greg)
 BAHA (Belgian Aviation History Association)
 BAHA  Archaeology Team (Website by  Cynrik De Decker )
 History of Spitfire MK.IIA P8144  (by John B. Fitzgerald)
 The Pilots of 41 Squadron RAF, 1939-1945 (by Steve Brew)
127 Squadron (By Andy Ingham)
197 Typhoon Squadron
322 (Dutch) Squadron
609 (West Riding) Squadron
610 (County of Chester) Squadron
611 (West Lancashire) Squadron
Belgae Gallorum Fortissimi 
 The Spitfire Society- Questions
 Biplane Fighter Aces from the Second World War
Air of Authority - A History of RAF Organisation
Royal Air Forces Register of Associations
 The Battle of Britain - 1940
RAF in Combat
Ciel de Gloire
Les As Français de 1939-1945
Czechoslovak Airmen in the RAF 1940-1945
Aces of the Luftwaffe (Website by Petr Kacha)
12 O'Clock - High Bulletin Board
Key Publishing Ltd Aviation Forums - Historic Aviation
 RAF Commands 1939 - 1945 Bulletin Board
Brussels Air Museum Restoration Society (BAMRS)