00611nam a2200193Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d 2-8004-0596-1 IIA Library 524.834(063) AST Universite' de Bruxelles 9678 Astrophysics and gravitation Universite' de Bruxelles Belgique Edtions de l'Universite de Bruxelles 1974 [various pagings.] Astronomy and astrophysics thesaurus Astrophysics 794 Gravitation BK 5568 5568 0 0 0 0 BAN BAN GEN 1977-09-27 0 524.834(063)/ AST 6235 2021-11-05 1977-09-27 BK