Linear combinations of morphological operators: the midrange, pseudomedian, and LOCO filters. - Mark A. Schulze; John A. Pearce (ICASSP (5), 1993)

A Morphology-Based Filter Structure for Edge-enhancing Smoothing. - Mark A. Schulze; John A. Pearce (ICIP (2), 1994)

Centroid Attraction: a Technique for Multiscale Edge Detection. - H. C. North; Qing X. Wu; Mark A. Schulze (IVCNZ, 1998)