000 00268nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a621.3813
100 _aValli D
245 0 _aSignals and Systems
250 _a1
260 _bLakshmi Chennai
_c2006
942 _cBK
999 _c36458
_d36458