00981cam--2200337---450-99000581553020331620130308142145.00-13-522583-30014652USA010014652(ALEPH)000581553USA01001465220130308d1997----km-y0itay50------ba2001995022191993----y0itay0103----baengUS||||||||001yyDigital and analog communication systemsLeon W. Couch5. edUpper saddle RiverPrentice Hall1997XXV, 742 p.24 cmTelecomunicazioniBNCF621.382COUCH,Leon W.150085ITsalbcISBD990005815530203316621.382 COU 214251 Ing.621.38200313650BKTECCHIARA9020130308USA011421Digital and analog communication systems23062UNISA