00365nam a2200133Ia 4500008004100000020001500041041001200056082001600068100001300084245007100097260003900168300000800207650001600215221030s9999    xx            000 0 und d  a8178086263  aEnglish  a105.23bBla  aU. Black 0aOptical Networks : Third Generation Transport Systemscby U. Black  bPearson EducationaNew Delhic2002  a331  aBE Computer