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- International Astronomical Union. Symposium (4)
- Andrew, B. H. (Bryan H.) (1)
- COSPAR (1)
- Halliday, Ian (1)
- Hesser, J. E. (1)
- International Astronomical Union (1)
- International Astronomical Union. Commission 14 (1)
- International Astronomical Union. Commission 40 (1)
- International Astronomical Union. Commission No. 34 (1)
- McIntosh, Bruce A. (1)
- Plavec, Miroslav (1)
- Popper, Daniel M. (1)
- Ulrich, R. K. (1)