1.

図書
図書
1. White dwarfs : symposium no. 42, held at St. Andrews, Fife, Scotland, 11-13 August 1970
ed. by W. J. Luyten
出版情報: Dordrecht : Reidel, 1971
シリーズ名: Symposium / International Astronomical Union ; no. 42
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2.

図書
図書
2. International Astronomical Union, Colloquium No. 7 : Proper Motions, held at Minneapolis, 21-23 April 1970
edited by W. J. Luyten
出版情報: Minneapolis : University of Minnesota, 1970
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