000 00288nam a2200121Ia 4500
008 241124s9999 xx 000 0 und d
100 _aHsu, Hwei P
245 0 _aSchaum`s Outline of theory and problems of Signals and Systems
260 _b-
260 _c0
300 _a266
942 _cBK
999 _c5459
_d5459