- International Astronomical Union. Symposium (4)
- Bloemen, Johannes Bernhardus Gerhardus Maria, 1957- (1)
- Boulanger, F. (1)
- Casoli, F. (Fabienne), 1959- (1)
- Combes, F. (1)
- Duvert, G. (1)
- Falgarone, E. (Edith) (1)
- Hidayat, Bambang (1)
- Hucht, Karel A. van der (1)
- International Astronomical Union (1)