The Navy's First Airships Proceedings - August 1919 Vol. 45/8/198
Why Old-Timey Zeppelins and Blimps Could Make a Modern Comeback
The Goodyear Blimp Technically Isn't : Building Speed
Goodyear Blimp Lands In Joliet: Here's Why
Zeppelins stopped flying after the Hindenburg disaster. Now scientists want to bring them back.
What happened to blimps — And why airships may make a comeback
Return of the Military Airship
Airships Rise Again, Air & Space Magazine
The History of the Goodyear Blimp