A Bandpass Subsampled Delta-Sigma Modulator for Narrowband Cellular Mobile Communications. - Frédéric Gourgue; Maurice G. Bellanger; Sabrina Azrouf; Vincent Bruneau (ISCAS, 1994)

Poles and zeros of bandpass filters for high-performance sigma-delta modulators. - Maurice G. Bellanger; A. Vouillemont; Sabrina Azrouf; Frédéric Gourgue (Int. J. Circuit Theory Appl., 1995)