00891nam0-22002891i-450-99000265289040332120071106103051.0000265289FED01000265289(Aleph)000265289FED0100026528920030910d1973----km-y0itay50------baengUSy-------001yyOperations research: planning, operating, and information systemsNicolai Siemens, C.H. Marting, Frank GreenwoodNew YorkFree Press1973Siemens,Nicolai108506Marting,C. H.304668Greenwood,Frank304669ITUNINARICAUNIMARCBK9900026528904033211-5-127-TIs.i.ECAECAOperations research: planning, operating, and information systems430673UNINA