Suggestions For A Friendlier User Interface. - Ron Avitzur (DISCO, 1990)

From Honest to Intelligent Plotting. - Ron Avitzur; Olaf Bachmann; Norbert Kajler (ISSAC, 1995)

Graphing calculator. - Ron Avitzur (Interactions, 1996)

Direct manipulation in a mathematics user interface. - Ron Avitzur (Computer-Human Interaction in Symbolic Computation, 1998)