00887nam0-22003251i-450-990002580060403321000258006FED01000258006(Aleph)000258006FED0100025800620000920d1959----km-y0itay50------baENGAmerican Mathematical Society TranslationsBy A.M.S.ProvidenceA.M.S.1959.iii, 342 p.26 cmAMS translationsSerie 212OpereTrattatiRaccolteAtti di convegni510American Mathematical Society441587ITUNINARICAUNIMARCBK990002580060403321MXXIX-A-369581MASMASAmerican Mathematical Society Translations436075UNINAING01