00282nam a2200121Ia 45000030006000000080041000060400015000471000023000622450037000852600009001225460012001310050017001430STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aRamachandran, G.V.  aAdditional problems in Astronomy  c1951  aEnglish20220125170007.0