000			00516nam a2200193Ia 4500
999			_c29933 _d29933
005			20200724132310.0
008			180712s9999 xx 000 0 und d
020			_a333475135
041			_aEN
082			_a621.380414 _bSIB _223
100			_aSibley, M.J.N.
245			_aOptical communications _c/ By M.J.N. Sibley
260			_aLondon _bMacmillan _c1990
300			_axiv, 152 p.
500			_aincludes bibliography, reference & index
509			_aNS
650			_aOptical communication system
942			_cS