Files W.F.F. Archive Publications Department of the Army, Office of the Chief of Military History, German Radio Intelligence, Albert Praun, 1950 (2 Copies with Different Classifications), Including Memoranda Regarding the Document, 1953
Department of the Army Historical Division Study of German Radio Intelligence; Re "German Radio Intelligence," MS No P-038
German Radio Intelligence (by Albert Praun, Former Lt. GEN.); Dept. of the Army Office of the Chief of Military History. Includes NSA Memo and Comments on Report
German Radio Intelligence; A Secret Version, Slightly Expanded, Exists, Same Title, Serial MS No P-038