1.

図書
図書
1. The problem of the variation of the geographical coordinates in the Southern Hemisphere : Colloquium no. 1 of the International Astronomical Union, November 4-5, 1968, Astronomical Observatory, National University of La Plata, Republic of Argentina
International Astronomical Union. Colloquium ; International Astronomical Union ; Universidad Nacional de La Plata. Observatorio Astronómico
出版情報: [La Plata] : Astronomical Observatory, National University of La Plata, Republic of Argentina, 1972
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2.

図書
図書
2. Gravitational N-body problem : proceedings of IAU Colloquium no. 10, held in Cambridge, England, August 12-15, 1970
edited by Myron Lecar
出版情報: Dordrecht : D. Reidel, c1972
シリーズ名: Astrophysics and space science library ; v. 31
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