Sampling of Quadrature-Phase Quantities. - Lennart Harnefors; Kåre Mossberg (ISCAS, 1995)

Design of Bilinear Digital Ladder Filters. - Svante Signell; Todor G. Kouyoumdjiev; Kåre Mossberg; Lennart Harnefors (ISCAS, 1995)