000 00412nam a2200169Ia 4500
008 220901s9999 xx 000 0 und d
041 _a  ENGLISH
082 _a621.382.382
082 _bVIS
100 _aVISHWANATHAN, T.
245 0 _aTELECOMMUNICATION SWITCHING SYSTEMS AND NETWORKS.
260 _bPHI NEWDELHI
260 _c2002
300 _a583
650 _a  TELECOMMUNICATION
942 _cTB
999 _c131622
_d131622