00400nam a2200145Ia 4500003000900000008004100009020001800050040001600068080001500084100001900099245005800118260004800176300001300224650001700237IN-BaIIA211028s9999    xx            000 0 eng d  a0-521-79800-0  cIIA Library  a524.3bHIL  aHilditch, R. W 3aAn introduction to close binary starscR. W. Hilditch  aCambridgebCambridge University Pressc2001  ax, 381p.  aDouble stars