Synthesis of the group delay equalizers. - J. Vrbata; Milos Laipert; Miroslav Vlcek (ICECS, 2002)

Design of digital all-pass filters with equal-ripple group delay frequency response. - Premysl Ziska; Miroslav Vlcek; Milos Laipert (ECCTD, 2005)

Design of analog all-pass filters with equal-ripple group delay frequency response. - Premysl Ziska; Milos Laipert (IEEE Congress on Evolutionary Computation, 2007)