(en) Guy Hartcup, The Achievement of the Airship: A History of the Development of Rigid, Semi-rigid, and Non-rigid Airships, David & Charles, (ISBN978-0-7153-6551-9, lire en ligne), p. 251
(en-US) Emanuel Fabian NEW! Get email alerts when this author publishes a new article You will receive email alerts from this author Manage alert preferences on your profile page You will no longer receive email alerts from this author Manage alert preferences on your profile page, « Giant missile-detecting balloon begins operational use over northern Israel », sur www.timesofisrael.com (consulté le )
