https://www.invent.org/inductees/ferdinand-von-zeppelin
NIHF Inductee Ferdinand von Zeppelin Invented the Rigid Airship
National Inventors Hall of Fame Inductee Ferdinand von Zeppelin conceived and developed the first rigid airship, a lighter-than-air vehicle, known as the...
ferdinand von zeppelinnihfinducteeinventedrigid
https://www.deutsche-digitale-bibliothek.de/person/gnd/118636545
Ferdinand von Zeppelin - Deutsche Digitale Bibliothek
ferdinand von zeppelindeutschedigitalebibliothek