1. John J O’Neill, Prodigal Genius — The Life of Nikola Tesla, Granada Publishing Ltd., 1980.
2. W Bernard Carlson, Inventor of Dreams, Scientific American, Vol. 292, No. 3, p.66, March 2005.
3. Nikola Tesla in Wikipedia, http://en.wikipedia.org/wiki/Nikola_Tesla .
4. Tesla Memorial Society, NY, Nikola Tesla — The Genius who lit the world, 1998. www.teslasociety.com/biography.htm
5. Nikola Tesla’s autobiography. http://amasci.com/tesla/biog.txt