00986nam a2200229Ia 4500003000900000008004100009020001800050040001600068080002000084111010100104245018800205260003700393300001400430490006300444650004100507650002500548650002700573700003500600942000700635999001700642952009700659IN-BaIIA211028s9999    xx            000 0 eng d  a0-7923-1914-1  cIIA Library  a063:52bIAU-21B  aInternational Astronomical Union General Assemblyn21stcArgentinad1991 July 23 - Aug. 1918073 0aXXIst General assembly bproceedings of the 21st General Assembly, Buenos Aires, Argentina, July 23 - August 1, 1991cedited by Jacqueline Bergeron                                     aDordrechtbKluwer Academicc1992  axv, 366p.  aTransactions of the International Astronomical Union; v. X  aAstronomy and Astrophysics Thesaurus  aIAU General Assembly  aIAU Transactions95483  aBergeron, Jacqueline ed918074  cBK  c10597d10597  00104070aBANbBANcGENd1993-03-01l0o063:52/ IAU-21Bp11508r2021-11-05w1993-03-01yBK