000			00388nam a2200133Ia 4500
003			OSt
008			181001s2009 xx 000 0 und d
082			_a621.3827 _bBLA
100			_aBlack, Uyless
245		0	_aOptical networks: _bThird generation transport system
260			_bPearson Education, _aNew Delhi: _c©2009
650			_aElectronics and Communication Engineering
942			_2ddc _cBK
999			_c5790 _d5790