1.

雑誌
雑誌
1. Proceedings of the National Academy of Sciences of the United States of America. Physical sciences
National Academy of Sciences (U.S.)
出版情報: Washington, D.C. : National Academy of Sciences
巻次（年次）: Vol. 77 (Jan. 1980)-v. 81 (1984)
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2.

雑誌
雑誌
2. I.G. bulletin
National Academy of Sciences
出版情報: Washington, D.C.
巻次（年次）: No. 62 (Aug. 1962)-
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3.

雑誌
雑誌
3. IGY solar activity report series
High Altitude Observatory, University of Colorado ; World Data Center A ; National Academy of Sciences (U.S.)
出版情報: Boulder, Colorado : High Altitude Observatory, University of Colorado
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