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2. 2) K. Odaka, Y. Ishikawa and M. Furuse: Shinku, 29 (1986) 288.
3. 3) R. Calder, G. Lewin: CERN-ISR-VAC-66-28 (1966).
4. 4) H. Kumagai, G. Tominaga, Y. Tuzi and G. Horikoshi: Shinku no Butsuri to Ohyo (Shokabo, Tokyo, 1970) p. 175.
5. 5) C. Hayashi ed.: Shinku-Gijyutsu (Kyoritu-Syuppan, Tokyo, 1985) p. 119.