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101 0 $aeng
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200 1 $aCommunication switching systems$fMurray Rubin, C. E. Haller
210   $aLondon$cReinhold publishing$dc1966
215   $a394 p.$cill.$d23 cm
610 0 $aTeoria della commutazione
610 0 $aAnalisi dei sistemi
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700  1$aRubin,$bMurray
701  1$aHaller,$bC. E.
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