World Wireless System (English Wikipedia)

Wheeler, L. P. (August 1943). "Tesla's contribution to high frequency". Electrical Engineering. 62 (8). IEEE: 355–57. doi:10.1109/EE.1943.6435874. ISSN 0095-9197. S2CID 51671246.
Brown, William C. (1984). "The history of power transmission by radio waves". IEEE Transactions on Microwave Theory and Techniques. 32 (9). Inst. of Electrical and Electronic Engineers: 1230–34. Bibcode:1984ITMTT..32.1230B. doi:10.1109/TMTT.1984.1132833. Retrieved November 20, 2014.

earlyradiohistory.us (Global: low place; English: low place)

ethw.org (Global: low place; English: 7,456^th place)

"Nikola Tesla". Engineering and Technology History Wiki. Retrieved December 4, 2021.

harvard.edu (Global: 18^th place; English: 17^th place)

ui.adsabs.harvard.edu

Brown, William C. (1984). "The history of power transmission by radio waves". IEEE Transactions on Microwave Theory and Techniques. 32 (9). Inst. of Electrical and Electronic Engineers: 1230–34. Bibcode:1984ITMTT..32.1230B. doi:10.1109/TMTT.1984.1132833. Retrieved November 20, 2014.

hathitrust.org (Global: 441^st place; English: 311^th place)

babel.hathitrust.org

O'Neill, John J. (1944). Prodigal Genius: The life of Nikola Tesla. Ives Washburn, Inc. p. 193.

nytimes.com (Global: 7^th place; English: 7^th place)

Broad, William J. (May 4, 2009). "A Battle to Preserve a Visionary's Bold Failure". New York Times. New York. p. D1. Retrieved November 19, 2014.

patents.google.com (Global: 1,182^nd place; English: 725^th place)

U.S. patent 447,921, Tesla, Nikola, "Alternating Electric Current Generator".
Ratzlaff, John T., Dr. Nikola Tesla Complete Patents; System of Transmission of Electrical Energy, September 2, 1897, U.S. patent 645,576, March 20, 1900.

pbs.org (Global: 198^th place; English: 154^th place)

Tesla, Nikola, "The True Wireless". Electrical Experimenter, May 1919. (Available at pbs.org).
"Life and Legacy: Colorado Springs". Tesla: Master of Lightning – companion site for 2000 PBS television documentary. 2000. Retrieved November 19, 2014.
"Dennis Papadopoulos interview". Tesla: Master of Lightning – companion site for 2000 PBS television documentary. 2000. Retrieved November 19, 2014.

researchgate.net (Global: 120^th place; English: 125^th place)

Brown, William C. (1984). "The history of power transmission by radio waves". IEEE Transactions on Microwave Theory and Techniques. 32 (9). Inst. of Electrical and Electronic Engineers: 1230–34. Bibcode:1984ITMTT..32.1230B. doi:10.1109/TMTT.1984.1132833. Retrieved November 20, 2014.

semanticscholar.org (Global: 11^th place; English: 8^th place)

api.semanticscholar.org

Wheeler, L. P. (August 1943). "Tesla's contribution to high frequency". Electrical Engineering. 62 (8). IEEE: 355–57. doi:10.1109/EE.1943.6435874. ISSN 0095-9197. S2CID 51671246.

smithsonianmag.com (Global: 503^rd place; English: 364^th place)

Gilbert King, The Rise and Fall of Nikola Tesla and his Tower, smithsonian.com, February 4, 2013.

teslatech.info (Global: low place; English: low place)

Marc J. Seifer, Nikola Tesla: The Lost Wizard, from: ExtraOrdinary Technology (Volume 4, Issue 1; Jan/Feb/Mar 2006).

teslauniverse.com (Global: low place; English: low place)

Nikola Tesla, The Problem of Increasing Human Energy, June 1, 1900
Tesla, Nikola; Marinčić, Aleksandar; Popovic, Vojin; Ciric, Milan (2008). From Colorado Springs to Long Island : research notes : Colorado Springs 1899-1900, New York 1900-1901. Belgrade: Nikola Tesla Museum. p. 449. ISBN 9788681243442. Retrieved 28 February 2016.

tfcbooks.com (Global: low place; English: low place)

"The Transmission of Electric Energy Without Wires, Electrical World". 21st Century Books. 5 March 1904. Retrieved 4 June 2009.
Nikola Tesla On His Work With Alternating Currents and Their Application to Wireless Telegraphy, Telephony, and Transmission of Power, ISBN 1-893817-01-6, p. 203.

wikisource.org (Global: 27^th place; English: 51^st place)

en.wikisource.org

Note: at St. Louis, Missouri, Tesla public demonstration called, "On Light and Other High Frequency Phenomena", Journal of the Franklin Institute, Volume 136, by Persifor Frazer, Franklin Institute (Philadelphia, Pennsylvania).
Tesla, Nikola, "The True Wireless". Electrical Experimenter, May 1919. (Available at pbs.org).

worldcat.org (Global: 5^th place; English: 5^th place)

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Wheeler, L. P. (August 1943). "Tesla's contribution to high frequency". Electrical Engineering. 62 (8). IEEE: 355–57. doi:10.1109/EE.1943.6435874. ISSN 0095-9197. S2CID 51671246.

World Wireless System (English Wikipedia)

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pbs.org (Global: 198^th place; English: 154^th place)

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