00822nam0-22003011i-450-99000086320040332120130509181857.00-471-54868-5000086320FED01000086320(Aleph)000086320FED0100008632020020821d1992----km-y0itay50------baengUSy-------001yyPartial differential equationsan introductionW.A. StraussNew YorkJohn Wiley & Sons1992IX, 425 p.24 cm515.353Strauss,Walter A.42684ITUNINARICAUNIMARCBK99000086320040332102 34 E 756229FINBNFINBNPartial differential equations349092UNINA