Berge aus dem All

von Dech, Stefan Werner,, Glaser, Rüdiger, Messner, Reinhold,, Märtin, Ralf-Peter
München : Frederking & Thaler, 2005.
Umfang/Format: 244 pages : chiefly colour ilustrations, maps ; 30 cm.

Forgotten and lost? : Archival research of aerial photographic collections of the Western Front 1914-1918: A guide to the archives

von Stichelbaut, Birger
Prostor, kraj, čas 9
Umfang/Format: 1 online resource (97 pages).