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*100  $aNordby, Knut$_77708800
*245  $aA tactile marker for telephone cards$bfrom idea to global standard
*300  $aS. 97-105 : ill.
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*773  $tTelektronikk$gVol. 93, no. 3/4 (1997)$x0085-7130$w(NO-LaBS)537526(tnr)
*999  $z9800240587$anorart:9800240587
^