TY - SER ED - Smithsonian Astrophysical Observatory. TI - Smithsonian contributions to astrophysics SN - 0081-0231 AV - QB461 .S6 PY - 1956///-1974 CY - Washington PB - Smithsonian Institution Press [etc.; for sale by the Supt. of Docs., U.S. Govt. Print. Off.] KW - Astrophysics KW - fast N1 - Includes bibliographical references; Chemical abstracts; 0009-2258 ER -