000 00374nam a2200145Ia 4500
008 230917s9999||||xx |||||||||||||| ||und||
040 _e203437
_aMAIN
041 _aEnglish
082 _a515.353 S55P
100 _aSommerfeld, Arnold
245 0 _aPartial differential equations in Physics
260 _aNew York
_bAcademic Press
_c1949
300 _a335 p.
942 _cBK
999 _c147131
_d147131