01010nam0-22003371i-450-990002580690403321000258069FED01000258069(Aleph)000258069FED0100025806920000920d1950----km-y0itay50------baENGExistence Theorems in Partial Differential EquationsDorothy L. Bernstein.Princeton (New Jersey)Princeton University Press1950.vii, 228 p.25 cmAnnals of mathematics studies23OpereTrattatiRaccolteEquazioni differenziali ed integrali519Bernstein,Dorothy Lewis54443ITUNINARICAUNIMARCBK990002580690403321MXXIX-A-3322371MASMXXIX-A-3331872MASMASExistence theorems in partial differential equations345265UNINAING01