00274nam a2200097Ia 450000500170000000800410001710000200005824500600007826000300013830000080016820260413100552.0230516s9999||||xx |||||||||||||| ||und||  aZeimer,Rodger A 0aPrinciples of Communication: systems mobilation & noise  bN.Delhi,Wiley Indiac2018  a734