Here is a list of books dealing with Aviation in Russia during the WW I period. Not a very well covered subject:
The Imperial Russian Air Service, A. Dukuta, T. Darcy, V. Kulikov
Above the War Fronts N.R Franks, R guest and G Alegi
Gatchina Days A Ribakoff
Igor Sikorsky The Russian Years K.N. Finne
Sikorsky S-16 Vadim Mikheyev
Ilya Muromets Type Veh Harry Woodman
Books on this subject that i have not read but have good reviews:
the Russian military air Fleet in WW I (2 Volumes) A Blume
Russian Aeroplanes 1914-1918 m Maslov
gone to Russia to fight The RAF in South Russia 1918-1920 J. Smith
See also the Aerodrome, the great War forum and the great War in the Air Fourm for any WW I aviation questions Windsock datafiles has profiles of many WW I era aircraft
