00834nam0-22003011i-450-99000097867040332120040702141521.0000097867FED01000097867(Aleph)000097867FED0100009786720020001d--------km-y0itay50------baengMethods in Mathematical Physicsby R. Courant and D. HilbertNew YorkInterscience1962Fisica matematicaFisica teorica530Courant,Richard331066Hilbert,DavidITUNINARICAUNIMARCBK99000097867040332120-003.001F2684FI120-003.002F14342FI1FI1Methods in Mathematical Physics353215UNINA