000 00357nam a2200109Ia 4500
008 171227s2002 xx 000 0 und d
020 _a0-07-048390-6
100 _aAli, Syed Riffat
245 _aDigital Switching Systems
_bSystems Reliability and Analysis
260 _aNew Delhi
_bTata McGraw-Hill Publishing Company Limited
_c2002
300 _a219
650 _aDigital Switching Systems
999 _c152554
_d152554