00995nam a2200241Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d IIA Library 082.2:52 IAU-C127 Colloquium of the International Astronomical Union USA 1990 Oct. 4-20 17417 Reference systems proceedings of the 127th Colloquium of the International Astronomical Union on Reference systems held in Virginia Beach, VA, USA 14-20 October 1990 edited by J. A. Hughes, C. A. Smith and G. H. Kaplan Washington U. S. Naval Observatory 1991 xiii, 419p. IAU Colloquium; no.127 Astrometry Astronomy and Astrophysics Thesaurus Celestial mechanics Reference Systems 9978 Hughes, J. A., ed. 17418 Kaplan, G. H., ed. 17419 Smith, C. A., ed. 17420 BK 10246 10246 0 0 0 0 BAN BAN GEN 1991-11-18 0 082.2:52/ IAU-C127 11156 2021-11-05 1991-11-18 BK