000 00272nam a2200109Ia 4500
008 160710s1966 xx 000 0 und d
100 _aSINGH,R.N.
245 _aINDIAN JOURNAL OF PURE & APPLIED PHYSICS
260 _bPERGAMON PRESS
_c1966
300 _a216
942 _2ddc
_cB
999 _c31994
_d31994