000 00336nam a2200133Ia 4500
008 241225s9999 xx 000 0 und d
020 _a0
082 _a535
_bGUP
100 _aGupta, S L.
245 0 _aOptics and electronics theory
260 _aMeerut :
_bPragati Prakashan,
_c1992.
365 _a55
650 _aPhysical Sciences
999 _c5163
_d5163