000 00277nam a22001217a 4500
999 _c5953
_d5953
003 OSt
005 20210307161022.0
008 210307b ||||| |||| 00| 0 eng d
100 _aPADMANABHAN K.
245 _aSIGNALS AND SYSTEMS
260 _aNEW DELHI
_bNEW AGE
942 _2ddc
_cGE