1. (1) N. Tesla : “The transmission of electric energy without wires, The thirteenth Anniversary Number of the Electrical World and Engineer”, (1904-3)
2. (2) N. Tesla : “Experiments with Alternate Current of High Potential and High Frequency”, McGraw Pub. Co., N. Y (1904)
3. (3) P. E. Glaser : “Power from the Sun ; Its Future”, Science, No. 162, pp. 857-886 (1968)
4. (4) H. Matsumoto and I. Kimura : “Nonlinear Excitation of Electron Waves by a Monochromatic Strong Microwave : Computer Simulation Analysis of the MINIX Results”, Space Power 6. pp. 187-191 (1986)
5. (5) E. Fujiwara, et al. : “Compact Microwave Energy Transmitter”, JUSPS'03 (2003)