000 00304nam a2200121Ia 4500
008 190812s9999 xx 000 0 und d
020 _a9788131705735
100 _a"Proakis J.G. & Salehi, Masoud"
245 0 _aFundamental of communications systems
260 _bPearson IN
365 _b979
942 _cBK
999 _c5451
_d5451