00466nam a2200157Ia 450000100040000000500170000400800410002102000140006208200190007610000270009524500270012226000160014965000330016599900130019895200970021180820261006003500.0120911s9999    xx            000 0 und d  a07Y664900  a621.380413 PRO  aProakis, John G.91387  aDigital communications  aMcgraw Hill  aDigital communications91388  c808d808  00104070aNUbNUd2012-09-11l0o621.380413 PROp1209r2012-09-11 00:00:00w2012-09-11yOS