00285nam a2200109Ia 4500008004100000041001200041082001100053100002300064245007600087260000600163650000600169221030s9999    xx            000 0 und d  aEnglish  a105.23  aMichael A. Milller 0aIntroduction to  Digital and Data Communicationscby Michael A. Milller  c0  aB