00280nam a2200121Ia 45000030006000000080041000060400015000471000028000622450030000902600009001205460012001290050017001410STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aKohan, S.G.; Wood, P.H.  aExploring the Unix system  c1984  aEnglish20220125160215.0