000
00273nam a2200121Ia 4500
020
_a
0876925034
100
_a
Alan V Oppenheim
245
_a
Signals and Systems
260
_c
1987
_b
PRENTICE HALL
_a
New Delhi
300
_a
xix+796
700
_a
Alan S Willsky
942
_c
BK
999
_c
14315
_d
14315