00735nam0-22002531i-450-990001271130403321000127113FED01000127113(Aleph)000127113FED0100012711320000920d1955----km-y0itay50------baengVorlesungen Uber Partielle Differentialgleichungenby PetrowskiLeipzigTeubner1955Petrovsky,I. G.<Ivan Georgievich ;1901-1973>331375ITUNINARICAUNIMARCBK9900012711304033214-F-62455MA1MA135AXXVorlesungen Uber Partielle Differentialgleichungen380369UNINAING01