000 00318nam a2200121Ia 4500
001 147365
008 170722s9999 xx 000 0 und d
100 _aVerma, P. D. S.
245 _aMathematical physics /
260 _aNew Delhi :
_bVikas Publishing House ,
_c1997.
653 _aMathematical Physics
942 _cGEN
999 _c117537
_d117537