William R. Swartout, Jonathan Gratch, Randall W. Hill Jr., Eduard H. Hovy, Stacy Marsella, Jeff Rickel, David R. Traum. Towards Virtual Humans. In Achieving Human-Level Intelligence through Integrated Systems and Research, Papers from the 2004 AAAI Fall Symposium. Arlington, VA, USA, October 22-24, 2004. Volume FS-04-01 of pages 70-77, AAAI Press, 2004. [doi]