00426nam a2200169Ia 45000010005000000030009000050050017000140080041000310200018000720400013000900820018001031000019001212450061001402600037002013000011002385460007002495912PK-LaUMT20221228144426.0140319s9999    xx            000 0 und d  a0-13-599028-9  cPK-LaUMT  a 004.6bCOU-D  aCouch, Leon W.  aDigital and analog communication systemscCouch, Leon W.  aLondon,UK:bPrentice Hall,c1997  a742 p.  aEN