00302nam a2200133Ia 45000030006000000080041000060400015000471000019000622450027000812500011001082600020001195460012001390050017001510STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSibley, M.J.N.  aOptical communications  aSecond  bMacmillanc1995  aEnglish20220125170144.0