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2. 2) T. Nakajima, Fusso Kagaku Nyumon (Introduction to Fluorine Chemistry) (Ed. JSPS 155th Committee on Fluorine Chemistry), Nikkan Kogyo Shinbunsha, Tokyo, Chap. 1 (1997). [in Japanese]
3. 3) N. Watanabe, T. Nakajima, and H. Touhara, Graphite Fluorides, Elsevier, Amsterdam (1988).
4. 4) T. Nakajima and N. Watanabe, Graphite Fluorides and Carbon-Fluorine Compounds, CRC Press, Boca Raton, FL (1991).
5. 5) T. Nakajima, T. Ogawa, and N. Watanabe, J. Electrochem. Soc., 134, 8 (1987).