000 00252nam a2200109Ia 4500
008 230411s9999 xx 000 0 und d
082 _a621.3820
_bOPP
100 _aNAWAB (S. Ha
245 0 _aSignals and Systems
260 _bPHI
_aNEW DELHI
942 _cBB
999 _c8406
_d8406