Animated Pedagogical Agents: The Effect of Visual Information on a Historical Figure Application. - Robert Heller; Mike Procter (Int. J. Web Based Learn. Teach. Technol., 2009)

Conversational agents in virtual worlds: Bridging disciplines. - George Veletsianos; Robert Heller; Scott Overmyer; Mike Procter (Br. J. Educ. Technol., 2010)

An Integrated Architecture for Multiagent Virtual Worlds for Performing Adaptive Testing Games. - Sandeep Virwaney; Fuhua Lin 001; Grant McClure; Robert Heller (DMS, 2012)

Improving Conversation Engagement Through Data-Driven Agent Behavior Modification. - Michael Procter; Fuhua Lin 001; Robert Heller (Canadian AI, 2016)

Classifying Interaction Behaviors of Students and Conversational Agents Through Dialog Analysis. - Michael Procter; Robert Heller; Fuhua Lin 001 (ITS, 2018)