Quest for Flight Douban

author: Craig S. Harwood / Gary B. Fogel publishing house: University of Oklahoma Press 2012 - 10

Mein Lebensweg. Die Memoiren des Bremer Luftfahrt- Pioniers Douban

author: Henrich Focke publishing house: Verlag Peter Kurze 1996

Focke-Wulf Flugzeugbau Douban

author: Reinhold Thiel publishing house: Hauschild, H M 2011 - 11

Reuben Fleet and the story of Consolidated Aircraft Douban

author: William Wagner publishing house: Aero Publishers 1976

Lincoln Beachey Douban

author: Frank Marrero publishing house: Scottwall Associates 1997 - 3

Legend & Legacy Douban

author: Robert J. Serling publishing house: St Martins Pr 1991 - 7