Trampoline History Blog: A Brief History of World Trampoline - - Leading Up to the 1964 First World Championships
George Nissen (Inventor and Gymnast) - On This Day
Hilmer George Nissen (1921-1993) - Mémorial Find a Grave
TRAMPOLINE HISTORY - - George Nissen on the Trampoline at Age of 90! (2006) - YouTube
George Nissen dies at 96; inventor of the modern trampoline - Los Angeles Times
Time Machine: George Nissen, trampoline inventor | The Gazette
George Nisson, inventor of the trampoline, lives in San Diego's UTC | San Diego Reader
George Nissen obituary | Training programmes | The Guardian
The Olympic trampoline tradition: Remembering the man who taught the world to bounce | The World from PRX
George Nissen, Father of the Trampoline, Dies at 96 - The New York Times
George Nisson, inventor of the trampoline, lives in San Diego's UTC | San Diego Reader
Nissen, George • USA Gymnastics
Biography of George Nissen
George Nissen and the Trampoline – Lichtenberger Engineering Library
20 teen inventions that changed the world | CNN
Trampoline inventor, former Cedar Rapids businessman George Nissen dies at 96 | The Gazette
How the Trampoline Came to Be | Innovation| Smithsonian Magazine
George Nissen: Inventor of the trampoline | The Independent | The Independent
International Order of Merit-The International Gymnastics Hall of Fame
George Nissen: Inventor of the trampoline | The Independent | The Independent
George Nissen Gets His Inspiration
Counterlight's Peculiars: George Nissen, 1914 - 2010
The History of the Trampoline
