000 00268nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _a"Gosakan, V. & Nagarathnam, N."
245 0 _aOptics
260 _bNational
260 _c1990
365 _b50.00
942 _cBK
999 _c139267
_d139267