000 00263nam a2200121Ia 4500
008 211209s1975 xx 000 0 und d
041 _aeng
082 _a515 N75 SIN/VAR
100 _aSINHA H C
245 _aMATHEMATICAL METHODS
260 _c1975
300 _a251
999 _c7083
_d7083