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*035  $a(NO-LaBS)13723230(bibid)
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*1001 $aWelch, Samuel$0(NO-TrBIB)4039897$_110590800
*24510$aSignalling in telecommunications networks$cSamuel Welch
*260  $aLondon$bPeter Peregrinus$c1979
*300  $aIX, 382 s.$bill.
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*999  $aoai:nb.bibsys.no:997411521264702202$b2021-11-14T20:53:40Z$z997411521264702202
^