00439nam a2200133Ia 4500008004100000041000800041082001900049100001100068245005900079260002700138365000700165999001900172952011400191230303s9999    xx            000 0 und d  aeng  a621.38275, SEN  aSENIOR  aOptical Fiber Communications : Principles And Practice  aNew DelhibPEARSON ED.  cRS  c199992d199992  00104070aECDbECDd2023-03-07g350.00l0o621.38275, SENpECD-BB12383r2023-03-07 00:00:00w2023-03-07yBK