A new approach to the approximation of constant group delay low-pass one dimensional analog and digital transfer functions
Internet
http://spectrum.library.concordia.ca/4592/1/NL21842.pdfSharma, M. Omprakash <http://spectrum.library.concordia.ca/view/creators/Sharma=3AM=2E_Omprakash=3A=3A.html> (1985) A new approach to the approximation of constant group delay low-pass one dimensional analog and digital transfer functions. PhD thesis, Concordia University.