Pavel Zahradnik Miroslav Vlcek Boris Simák Analytical Design of Maximally Flat Notch FIR Filters for Communication Purposes. 392-400 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3421&spage=392 2005 conf/icn/2005-2 ICN (2) db/conf/icn/icn2005-2.html#ZahradnikVS05