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- International Astronomical Union (60)
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- 北川, 敏男(1909-1993) (24)
- Hellwege, K. H. (20)
- Hellwege, A. M. (19)
- NATO Advanced Study Institute (18)
- COSPAR (15)
- United States Naval Observatory. Nautical Almanac Office (14)
- Needham, Joseph (Noel Joseph Terence Montgomery), 1900-1995 (13)
- Society of Photo-optical Instrumentation Engineers (13)
- 小尾, 信弥(1925-) (13)
- 東京大学宇宙航空研究所 (13)
- 竹内, 均(1921-) (13)
- 広瀬, 秀雄(1909-1981) (12)
- COSPAR. Plenary Meeting (11)
- 藤井, 旭(1941-) (11)
- Einstein, Albert, 1879-1955 (10)
- International Astronomical Union. General Assembly (10)
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- American Physical Society (9)
- Asimov, Isaac, 1920-1992 (9)
- Landau, Lev Davidovich, 1908-1968 (9)
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- Schwartz, Laurent, 1915- (9)
- 一松, 信(1926-) (9)
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- American Mathematical Society (8)
- Beer, Arthur, 1900- (8)
- Born, Max, 1882-1970 (8)
- European Southern Observatory (8)
- Hoyle, Fred, Sir, 1915-2001 (8)
- Jeffreys, Harold, Sir, 1891- (8)
- Kopal, Zdeněk, 1914- (8)
- Lunar Science Conference (8)
- Luyten, Willem Jacob, 1899- (8)
- McCormac, Billy Murray (8)
- Moore, Patrick, 1923- (8)
- 宇宙電波懇談会 (8)
- 宮本, 正太郎(1912-1992) (8)
- 村山, 信彦(1928-1992) (8)
- 萩原, 雄祐(1897-1979) (8)
- 高橋, 秀俊(1915-1985) (8)
- Advanced Course of Swiss Society of Astronomy and Astrophysics (7)
- Centre national de la recherche scientifique (France) (7)
- Copernicus, Nicolaus, 1473-1543 (7)
- Great Britain. Nautical Almanac Office (7)
- Hermann, Robert, 1931- (7)
- Kaufmann, William J., 1942- (7)
- Lifshit︠s︡, E. M. (Evgeniĭ Mikhaĭlovich), 1915- (7)
- Lunar Science Institute (7)
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- Optical Society of America (7)
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- Thirring, Walter E., 1927- (7)
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- Basov, N. G. (Nikolaĭ Gennadievich), 1922- (6)
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- National Science Foundation (U.S.) (6)
- Newton, Robert R. (6)
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- 佐藤, 文隆(1938-) (6)
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- 山高, 昭(1927-) (6)
- 日本学士院 (6)
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- 東京大学海洋研究所 (6)
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- 荒木, 俊馬(1897-1978) (6)
- American Astronomical Society (5)
- Burgess, Eric (5)
- Copernicus Symposium (5)
- Gingerich, Owen, 1930- (5)
- Henrici, Peter, 1923- (5)
- Hilbert, David, 1862-1943 (5)
- Holovna astronomichna observatorii︠a︡ (Akademii︠a︡ nauk Ukraïnsʹkoï RSR) (5)
- Horowitz, Richard (5)
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