1. The transmission of electric energy without wires;Tesla,1904
2. Tesla, N., “Experiments with Alternate Current of High Potential and High Frequency,” McGraw Pub., Co., N.Y., (1904)
3. U.S. Department of Energy, “Satellite Power system,” (SPS) Program Summary, DOE/ER-0022, N79-16893, December, (1978)
4. HST and Beyond- Exploration and the Search for Origins: A Vision for Ultraviolet-Optical-Infrared Space Astronomy;Dressler,1996
5. Microwave power for smart material actuators