00926nam a2200229Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d 0-7923-1133-7 IIA Library 52(082.1) ASS-166 Colloquium of the International Astronomical Union USA 1990 Apr. 24-27 17583 Observatories in earth orbit and beyond proceedings of the 123rd colloquium of the International Astronomical Union held in Greenbelt, Maryland, USA, April 24-27,1990 edited by Y. Kondo Dordrecht Kluwer Academic 1990 xii, 572p. Astrophysics and Space Science Library; v. 166 Astronomy and Astrophysics Thesaurus Earth orbit 6092 Observatories Kondo, Y., ed. 13834 International Astronomical Union BK 10348 10348 0 0 0 0 BAN BAN GEN 1992-04-24 0 52(082.1)/ ASS-166 11258 2021-11-05 1992-04-24 BK