00696nam a2200181Ia 4500003000900000008004100009040001600050080002100066110003800087245012200125260005900247300001300306650004800319650002500367942000700392999001700399952009800416IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a017:52-73bEIN-1  aEinstein Catalog Committee921177 0aEinstein observatory catalog of IPC x-ray sourcesbvol. 1cEinstein Catalog Committee                                  aCambridgebSmithsonian Astrophysical Observatoryc1990  av, 507p.  aCatalog imaging propotional counter.921178  aX-Ray sources912440  cBK  c12142d12142  00104070aBANbBANcGENd1997-07-08l0o017:52-73/ EIN-1p13058r2021-11-05w1997-07-08yBK