000 00266nam a2200121Ia 4500
008 211209s1979 xx 000 0 und d
041 _aeng
082 _a510 N79 SHA/GUP
100 _aSHARMA J N
245 _aMATHEMATICAL METHODS
260 _c1979
300 _a118
999 _c15331
_d15331