00348nam a2200133Ia 4500008004100000020001500041041001200056082001600068100001700084245007200101260002500173300000800198650000800206221030s9999    xx            000 0 und d  a8120308824  aEnglish  a105.23bSen  aJ. M. Senior 0aOptical Fiber Communications Principles & Practicecby J. M. Senior  bPHIaNew Delhic2000  a921  aECE