German G-Type Bombers of WWI: A Centennial Perspective on Great War Airplanes (Great War Aviation) (Volume 14)
German Seaplanes of WWI - Sablatnig, Kaiserliche Werften, Lübeck-Travemünde, LTG, & Oertz: A Centennial Perspective on Great War Airplanes (Great War Aviation Series) (Volume 15)
The Blue Max Airmen Volume 4: German Airmen Awarded the Pour le Mérite
Albatros Fighter Aircraft of WWI (Spotlight on)
The Blue Max Airmen Volume 3: German Airmen Awarded the Pour le Mérite, Volume 3