00262nam a2200109Ia 4500008004100000041000800041082002400049100001300073245004900086260000900135300000800144211209s1975    xx            000 0 und d  aeng  a658.403 N75 THI/KLE  aTHIERAUF  aDECISION MAKING THROUGH OPERATIONS RESEARCH   c1975  a650