000 00304nam a2200109Ia 4500
008 201121s9999 xx 000 0 und d
100 _aChanda,Y. R.
245 0 _aIndian Journal Pure And Applied Physics
260 _bNew Delhi,Council Of Science And Indian National Res.
300 _c932
942 _cBV
999 _c16282
_d16282