New constraining method for partitioned block frequency-domain adaptive filters. - René Martinus Maria Derkx; Gerard P. M. Egelmeers; Piet C. W. Sommen (IEEE Trans. Signal Process., 2002)

Theoretical Analysis of a First-Order Azimuth-Steerable Superdirective Microphone Array. - René Martinus Maria Derkx; K. Janse (IEEE Trans. Speech Audio Process., 2009)

First-Order Adaptive Azimuthal Null-Steering for the Suppression of Two Directional Interferers. - René Martinus Maria Derkx (EURASIP J. Adv. Signal Process., 2010)