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200 1 $aPassive and active microwave circuits$fJ. Helszajn
210   $aNew York$cJohn Wiley & Sons$dcopyr. 1978
215   $aVII, 274 p.$cill. graf. tab.$dcopyr. 1978
606 0 $aCircuito a microstrisce
606 0 $aIngegneria elettronica
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