00446nam a2200157Ia 4500003000900000008004100009040001600050080001300066245006000079260003300139300001500172650001400187650004100201650001700242700002900259IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a524bAMB 0aTheoretical astrophysicscedited  by V. A. Ambartsumyan  aLondonbPergamon Pressc1958  axii, 645p.  aAstronomy  aAstronomy and Astrophysics Thesaurus  aAstrophysics  aAmbartsumyan, V. A., ed.