000 00288nam a2200121Ia 4500
008 241124s9999 xx 000 0 und d
100 _aSarkar, Subir Kumar
245 0 _aOptical fibres and fibre optic communication systems
260 _b-
260 _c0
300 _a388
942 _cBK
999 _c10390
_d10390