00373nam a2200145Ia 4500008004100000020001500041041001200056082001600068100001800084245007600102250000800178260002500186300000800211650000800219221030s9999    xx            000 0 und d  a0070483981  aEnglish  a105.23bFre  aL. E. Frenzel 0aCommunication Electronics : Principles & Applicationscby L. E. Frenzel  a3rd  bTMHaNew Delhic2006  a532  aECE