00317nam a2200133Ia 4500008004100000041000800041082001700049100001200066245003300078260002300111300000800134365001600142700002500158230718s9999    xx            000 0 und d  aeng  a621.392bGOR  aGore M.  aElements Of Systems Analysis  c2003bGalgotia Pub  a616  cRs.b190.00  aGore M.& Stubbe J.W.