000 00448nam a2200169Ia 4500
008 180424s9999 xx 000 0 und d
084 _a517.1 G1:3
100 _a"Goursat, Edouard"
245 0 _aVariation of Solutions Partial Differential Equations of the Second Order:
250 _a\\196400ENGGPMX
260 _aDover
260 _b1964
260 _cNew York
300 _a329p
500 _aincludes index and biblioraphy
942 _cBK
999 _c17407
_d17407