- Rycroft, Michael J. (2)
- Bowhill, S. A. (1)
- COSPAR. Plenary Meeting (1)
- Dessler, A. J. (1)
- Houghton, John Theodore, 1931- (1)
- Jaffe, L. D. (1)
- Symposium on Dynamics of the Thermosphere and Ionosphere Above 120km (1)
- Symposium on High Angular Resolution Astronomical Observations from Space (1)
- Symposium on Total Solar Eclipse of 7 March, 1970 (1)