00285nam a2200121Ia 4500008004100000020001500041041000800056082001100064100000900075245004400084260002700128300000800155211209s2005    xx            000 0 und d  a8120327128  aeng  a621.39  aNIIT  aADVANCED DIGITAL COMMUNICATION SYSTEMS   aNEW DELHIbP H Ic2005  a563