1.

図書
図書
1. Structure and development of solar active regions : symposium no. 35 held in Budapest, Hungary, 4-8 September 1967
edited by K.O. Kiepenheuer
出版情報: Dordrecht : D. Reidel, 1968
シリーズ名: Symposium / International Astronomical Union ; no. 35
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2.

図書
図書
2. Continental drift, secular motion of the pole, and rotation of the earth : symposium no. 32, organized by the IAU in cooperation with IUGG held in Stresa, Italy, 21 to 25 March 1967
edited by Wm. Markowitz and B. Guinot
出版情報: Dordrecht : D. Reidel, 1968
シリーズ名: Symposium / International Astronomical Union ; no. 32
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