00882nam0-22003131i-450-9900025675504033210262530163000256755FED01000256755(Aleph)000256755FED0100025675520000920d1976----km-y0itay50------baENGOn the foundations of combinatorial theorycombinatorial geometriesH. H. Crapo, G. Rota.2.ed.CambridgeM.I.T. Press1976.55 p.25 cmTeoria dei grafi, Combinatorica511Crapo,H. Henry54705Rota,G.ITUNINARICAUNIMARCBK990002567550403321MXXII-A-143445MASMASOn the foundations of combinatorial theory436534UNINAING01