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Fessenden - 100 Years of Radio

Belrose, John S., "Fessenden and Marconi: Their Differing Technologies and Transatlantic Experiments During the First Decade of this Century" International Conference on 100 Years of Radio (September 5–7, 1995).

Grant, John, "Experiments and Results in Wireless Telephony" The American Telephone Journal, January 26, 1907

Seitz, Frederick, "The Cosmic Inventor" Transactions of the American Philosophical Society. 1999.

George H. Clark Radioana Collection, ca. 1880 - 1950 - National Museum of American History, Smithsonian Institution.