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- International Astronomical Union (3)
- International Astronomical Union. Symposium (3)
- Keenan, Philip C. (Philip Childs), 1908- (2)
- Alfvén, Hannes, 1908- (1)
- Ames Research Center (1)
- Arrhenius, Gustaf (1)
- Berry, Michael V. (1)
- Billingham, John (1)
- COSPAR (1)
- Eggleton, P. P. (Peter P.), 1940- (1)
- Elsässer, Hans, 1929- (1)
- Escobal, Pedro Ramon (1)
- Fechtig, H., 1929- (1)
- Gehrels, Tom, 1925- (1)
- Gray, David F., 1938- (1)
- Great Britain. Nautical Almanac Office (1)
- Hauck, B. (1)
- Hildebrand, Francis Begnaud (1)
- International Astronomical Union. Colloquium (1)
- Matthews, Mildred Shapley (1)
- McNeil, Raymond C. (1)
- Meaburn, John, 1939- (1)
- Mitton, Simon, 1946- (1)
- Morgan, W. W. (William Wilson), 1906- (1)
- Morrison, Philip (1)
- Slettebak, Arne (1)
- United States Naval Observatory. Nautical Almanac Office (1)
- United States. National Aeronautics and Space Administration (1)
- United States. National Aeronautics and Space Administration. (1)
- Whelan, John, 1947- (1)
- Wirth, Niklaus, 1934- (1)
- Wolfe, John, 1933- (1)