000 00290nam a2200121Ia 4500
008 200906s9999 xx 000 0 und d
082 _a517.383 E644
100 _aEPSTEIN.B
245 0 _aPARTIAL DIFFERENTIAL EQUATIONS
260 _bMCGRAW, NEW YORK
_c1962
300 _a24X16
942 _cBK
999 _c61933
_d61933