Noriko Suzuki, Christoph Bartneck. Subtle expressivity for characters and robots. In Gilbert Cockton, Panu Korhonen, editors, Extended abstracts of the 2003 Conference on Human Factors in Computing Systems, CHI 2003, Ft. Lauderdale, Florida, USA, April 5-10, 2003. pages 1064-1065, ACM, 2003. [doi]
Abstract is missing.