The following publications are possibly variants of this publication:
- STEVE: A Pedagogical Agent for Virtual RealityJeff Rickel, W. Lewis Johnson. agents 1998: 332-333 [doi]
- Animated Agents for Procedural Training in Virtual Reality: Perception, Cognition, and Motor ControlJeff Rickel, W. Lewis Johnson. aai, 13(4-5):343-382, 1999. [doi]
- Animated Pedagogical Agents for Education Training and EdutainmentW. Lewis Johnson. icalt 2001: 501
- Integrating Pedagogical Agents into Virtual EnvironmentsW. Lewis Johnson, Jeff Rickel, Randy Stiles, Allen Munro. presence, 7(6):523-546, 1998.