Franks, Norman; Guest, Russell; Alegi, Gregory (1997). Above the War Fronts: the British Two-seater Bomber Pilot and Observer Aces, the British Two-seater Fighter Observer Aces, and the Belgian, Italian, Austro-Hungarian and Russian Fighter Aces, 1914-1918: Volume 4 of Fighting Airmen of WWI Series: Volume 4 of Air Aces of WWI. Grub Street. ISBN1-898697-56-6, ISBN978-1-898697-56-5.
Franks, Norman; Bailey, Frank; Guest, Russell (1993). Above the Lines: The Aces and Fighter Units of the German Air Service, Naval Air Service and Flanders Marine Corps 1914-1918. London: Grub Street. ISBN0-948817-73-9.