Image Processing for Teaching: A National Dissemination Program. - Richard Greenberg; Melanie Magisos; Robert Kolvoord; Robert Strom (ICIP (1), 1994)

Applications of Location-Based Services and Mobile Technologies in K-12 Classrooms. - Robert Kolvoord; Kathryn Keranen; Paul Rittenhouse (ISPRS Int. J. Geo Inf., 2017)