000 00309nam a2200121Ia 4500
008 211209s1962 xx 000 0 und d
041 _aeng
082 _a530.15 N62 COU/HIL
100 _aCOURANT
245 _aMETHODS OF MATHEMATICAL PHYSICS: PARTIAL DIFFERENTIAL EQUATIONS
260 _c1962
300 _a830
999 _c15370
_d15370