1. Fujimoto, M.-K., Aoki, S., Nakajima, K., Fukushima, T., and Matuzaka, S.: 1982, Proc. Symp. No.5 of IAG held at Tokyo, May, 1982, NOAA Tech. Rep. N0S95 NGS24.
2. Fukushima, T.: 1984, An introduction to the relativistic celestial mechanics, preprint (in Japanese).
3. Fukushima, T., Fujimoto, M.-K., Kinoshita, H., and Aoki, S.: 1986, Celestial Mechanics, in press.
4. Goldstein, H.: l980, Classical mechanics, 2nd ed., Addison-Wesley Publ. Co. Inc., Reading, Mass.
5. Hirayama, T., Kinoshita, H., and Fukushima, T.: l984, Froc. Symp. on the Longitude and Latitude for the year 1983 (in Japanese).