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- Cosmology--Congresses (8)
- Astronomy--Congresses (2)
- Galaxies--Congresses (2)
- Radio astronomy--Congresses (2)
- Aaronson, Marc A., 1950-1987 (1)
- Astronomy--Observations--Congresses (1)
- Astrophysics--Congresses (1)
- Infrared astronomy--Congresses (1)
- Stars--Clusters--Congresses (1)
- Zelʹdovich, I︠A︡. B. (I︠A︡kov Borisovich)--Congresses (1)