10.1038/scientificamerican0899-56
shneiderman, 1992, Designing the User Interface Strategies for Effective Human Computer Interaction
ur, 1996, A Course in Language Teaching Practice and Theory
10.1049/cp:20010478
10.1049/cp:20010464
baker, 1998, Tree or Three? An Elementary Pronunciation Course
baker, 1981, Ship or Sheep? An Intermediate Pronunciation Course
10.1038/scientificamerican0899-60
10.1145/176789.176792
1998, IBM ViaVoice 98 User Guide
10.1038/scientificamerican0899-58
bradshaw, 1997, Software Agents
10.1109/HICSS.1999.772736
koda, 1996, Agents with faces. The effects of personification of agents, Proceedings of HCl '96
kenworthy, 1992, Teaching English Pronunciation