00394nam a2200169Ia 4500003000500000008004100005020001800046040001900064082000700083100001700090245003300107250000600140260004800146300001000194365000800204546001200212STCL230729s9999    xx            000 0 und d  a9780070648104  aSTCLcSTCLbEN  222  aKeiser, Gerd 0aOptical fiber communications  a4  bTata McGraw Hill EducationaNew Delhic2009  a578 p  b425  aEnglish