000 00290nam a22001217a 4500
999 _c6400
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003 OSt
005 20210320155451.0
008 210320b ||||| |||| 00| 0 eng d
100 _aSARAH, P.
245 _aLASERS AND OPTICAL FIBRE COMMUNICATIONS
260 _bIK INTERNATIONAL
942 _2ddc
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