Aloys Mvuma Shotaro Nishimura Takao Hinamoto Adaptive optimization of notch bandwidth of an IIR filter used to suppress narrow-band interference. 341-344 2002 ISCAS (5) http://doi.ieeecomputersociety.org/10.1109/ISCAS.2002.1010710 db/conf/iscas/iscas2002-5.html#MvumaNH02