Pavel Zahradnik Miroslav Vlcek Boris Simák Analytical Design of an Equiripple DC-Notch FIR Filter. 2060-2063 2007 conf/iscas/2007 ISCAS https://doi.org/10.1109/ISCAS.2007.378503 db/conf/iscas/iscas2007.html#ZahradnikVS07