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- International Astronomical Union (2)
- American Astronomical Society (1)
- Astronomisches Rechen-Institut, Heidelberg (1)
- Brancazio, Peter J. (1)
- Burkhardt, G. (1)
- Böhme, Siegfried (1)
- COSPAR (1)
- Cameron, Alastair Graham Walter, 1925- (1)
- Chiu, Hong-yee, 1932- (1)
- Christiansen, W. N. (Wilbur Norman), 1913- (1)
- Conference on Supernovae, Goddard Institute for Space Studies, 1967 (1)
- Douglas, James Nathaniel, 1935- (1)
- Esser, U. (1)
- Fachinformationszentrum Energie, Physik, Mathematik (1)
- Goddard Institute for Space Studies (1)
- Greville, T. N. E. (Thomas Nall Eden), 1910- (1)
- Gurzadi︠a︡n, G. A. (Grigor Aramovich) (1)
- Heinrich, Inge (1)
- Högbom, J. A. (1)
- Jager, C. de (Cornelis de), 1921- (1)
- Piddington, J. H. (Jack Hobart) (1)
- Remo, John L. (1)
- Schmadel, Lutz D. (1)
- Special Committee for the International Years of the Quiet Sun (1)
- State University of New York at Stony Brook. Dept. of Earth and Space Sciences (1)
- State University of New York at Stony Brook. Dept. of Physics (1)
- Stickland, A. C. (1)
- Summer Institute for Observational Astronomy (1)
- Symposium on Solar Flares and Space Research (1968 : Tokyo, Japan) (1)
- Texas Symposium on Relativistic Astrophysics, 2d, University of Texas, 1964 (1)
- Tidman, Derek A. (1)
- United States. Goddard Institute for Space Studies, New York (1)
- Warasila, Robert L. (1)
- Wentzel, Donat G., 1934- (1)
- Yeshiva University, New York. Belfer Graduate School of Science (1)
- Švestka, Zdeněk (1)