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- COSPAR. Plenary Meeting (11)
- Rycroft, Michael J. (7)
- Akademyah ha-leʾumit ha-Yiśreʾelit le-madaʿim (1)
- Bowhill, S. A. (1)
- COSPAR (1)
- COSPAR Symposium and Workshop on Results from Coordinated Upper Atmosphere Measurement Programs (1975 : Varna, Bulgaria) (1)
- Donahue, Thomas M. (1)
- Hucht, Karel A. van der (1)
- Jaffe, L. D. (1)
- Kondratʹev, K. I︠A︡. (Kirill I︠A︡kovlevich) (1)
- Reasenberg, R. D. (1)
- Riedler, W. (1)
- Runcorn, S. K. (1)
- Sagan, Carl, 1934-1996 (1)
- Smith, P. A. (1)
- Symposium on Dynamics of the Thermosphere and Ionosphere Above 120km (1)
- Symposium on High Angular Resolution Astronomical Observations from Space (1)
- Symposium on New Instrumentation for Space Astronomy (1977 : Tel Aviv, Israel) (1)
- Symposium on Noctilucent Clouds and Interplanetary Dust, Constance, 1973 (1)
- Symposium on Remote Sounding of the Atmosphere (1)
- Symposium on Thermospheric Properties Concerning Tempratures and Dynamics with Special Application to H and He (1)
- Symposium on Total Solar Eclipse of 7 March, 1970 (1)
- Symposium on the Scientific Use of Balloons and Related Technical Problems (1)
- Thomas, L. (1)
- Vaiana, Giuseppe Salvatore, 1935-1991 (1)
- Österreichische Akademie der Wissenschaften (1)
- Österreichische Gesellschaft für Sonnenenergie und Weltraumfragen (1)