00542nam a2200181Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d IIA Library 524.7 BOL Boldt, Elihu 11977 HEAO A--2 Extragalactic results Elihu Boldt Maryland University of Maryland 1979 25p. Astronomy and astrophysics thesaurus HEAO-2 11978 Space vehicles 3652 BK 6995 6995 0 0 0 0 BAN BAN GEN 1982-01-20 0 524.7/ BOL 7771 2021-11-05 1982-01-20 BK 12