00874nam0-22003011i-450-990002552780403321000255278FED01000255278(Aleph)000255278FED0100025527820000920d1981----km-y0itay50------baENGCahiers du C.E.R.O.Centre d'Etude de Recherche Operationnelle.BruxellesCeuterick1981.387 p.25 cmCahiers C.E.R.O.23Ricerca operativa e programmazioneRicerca operativateoria generale658CENTRE D'ETUDES DE RECHERCHE OPERATIONNELLE104002ITUNINARICAUNIMARCBK990002552780403321MXVIII-A-373412MASMASCahiers du C.E.R.O437300UNINAING01