000 00337nam a2200145Ia 4500
008 221231s9999 xx 000 0 und d
100 _aBellany, John C
_95617
245 0 _aDigital Telephony
250 _a3
260 _bJohn  Wiley and Sons
260 _c2008
300 _a643
650 _aTelecommunication
_95618
942 _cBE_BK
999 _c4114
_d4114