000 00281nam a2200121Ia 4500
008 211209s9999 xx 000 0 und d
020 _a9788131721438
041 _aeng
082 _a621.3822 WIL
100 _aWILSON
245 _aDIGITAL MODULATION AND CODING
260 _bPEARSON
999 _c77509
_d77509