000 00293nam a2200121Ia 4500
008 220120s9999||||xx |||||||||||||| ||und||
020 _a9783518465806
082 _a005.1 HAM
100 _aChandrashekar, K
245 0 _aTelecommunication Swithcing
260 _bNew York
300 _a369p.
_b0
999 _c136423
_d136423