000 00328nam a2200133Ia 4500
005 20260413100705.0
008 230516s9999||||xx |||||||||||||| ||und||
100 _aKeiser Gerd
245 0 _aOptical Fiber Communication
260 _bN york Mcgrew hill
_c1991
300 _a461
942 _cGB
999 _c3696
_d3696