Sources
Books, Articles, Websites
- Browne, O'Brien. Ernst Udet: The Rise and Fall of a German World War I Ace from Aviation History.
- German Aces from Century of Flight.
- Evans, David. The First World War. Chicago: McGraw Hill, 2004.
- Flying Circus Aerodrome.
- Franks, Norman. Under The Guns Of The Red Baron. London: Grub Street, 1998.
- Richtofen, Manfred, "The Red Fighter Pilot." War Times Journal, 2003.
- Strachan, Hew. The First World War. New York: Penguin Books, 2005.
Pictures