000 00298nam a2200109Ia 4500
008 230411s9999 xx 000 0 und d
082 _a621.3813
_bSCH
100 _a SCHOENBECK (ROBERT J.)
245 0 _aElectronic Communications, Modulation and Transmission
260 _b PHI
_a New Delhi
942 _cBK
999 _c351
_d351