Optimal Use of Some Classical Approximations in Filter Design. - Hercules G. Dimopoulos (IEEE Trans. Circuits Syst. II Express Briefs, 2007)

The modified Pascal polynomial approximation and filter design method. - Hercules G. Dimopoulos; Elena Sarri (Int. J. Circuit Theory Appl., 2012)

Even-order passive filters: Pascal versus Chebyshev. - Hercules G. Dimopoulos (Int. J. Circuit Theory Appl., 2013)