The use of computer graphics in the evaluation of sanitary landfill sites. - Michael C. Roberts (Comput. Graph., 1978)

Card Sorting Data Collection Methodology: How Many Participants Is Most Efficient? - Ethan Lantz; Jared Keeley; Michael C. Roberts; Maria Elena Medina-Mora; Pratap Sharan; Geoffrey M. Reed (J. Classif., 2019)