S. Culhane, Animation from Script to Screen, 1988.

A. De-vicente and H. Pain, Motivation Diagnosis in Intelligent Tutoring Systems, Proceedings of the Fourth International Conference on Intelligent Tutoring Systems, pp.86-95, 1998.
DOI : 10.1007/3-540-68716-5_14

P. Dillenbourg, P. Jermann, D. Schneider, D. Traum, and C. Buiu, The design of MOO agents: Implications from an empirical CSCW study, Proceedings of Eighth World Conference on Artificial Intelligence in Education, pp.15-22, 1997.

C. R. Eliot and B. P. Woolf, A simulation-based tutor that reasons about multiple agents, Proceedings of the Thirteenth National Conference on Artificial Intelligence, pp.409-415, 1996.

C. Elliott, The Affective Reasoner: A Process Model of Emotions in a Multi-agent System, 1992.

C. Elliott and A. Ortony, Point of view: Reasoning about the concerns of others, Proceedings of the Fourteenth Annual Conference of the Cognitive Science Society, pp.809-814, 1992.

C. Elliott and G. Siegle, Variables influencing the intensity of simulated affective states, AAAI Spring Symposium on Reasoning about Mental States: Formal Theories and Applications, pp.58-67, 1993.

C. Frasson, T. Mengelle, and E. Aimeur, Using pedagogical agents in a multi-strategic intelligent tutoring system, Proceedings of the AI-ED '97 Workshop on Pedagogical Agents, pp.40-47, 1997.

J. P. Granieri, W. Becket, B. D. Reich, J. Crabtree, and N. I. Badler, Behavioral control for real-time simulated human agents, Proceedings of the 1995 symposium on Interactive 3D graphics , SI3D '95, pp.173-180, 1995.
DOI : 10.1145/199404.199435

P. Hietala and T. Niemirepo, The competence of learning companion agents, International Journal of Artificial Intelligence in Education, vol.9, pp.3-4178, 1998.
URL : https://hal.archives-ouvertes.fr/hal-00197370

J. D. Hollan, E. L. Hutchins, and L. M. Weitzman, STEAMER: An interactive, inspectable, simulation-based training system, Artificial Intelligence and Instruction: Applications and Methods, pp.113-134, 1987.

E. H. Hovy, Automated discourse generation using discourse structure relations, Artificial Intelligence, vol.63, issue.1-2, pp.341-385, 1993.
DOI : 10.1016/0004-3702(93)90021-3

K. Isbister and C. Nass, Personality in conversational characters: Building better digital interaction partners using knowledge about human personality preferences and perceptions, Workshop on Embodied Conversational Characters, pp.103-111, 1998.

W. L. Johnson, E. Shaw, and R. Ganeshan, Pedagogical agents on the web, Working Notes of the ITS '98 Workshop on Pedagogical Agents, pp.2-7, 1998.

D. Kurlander and D. T. Ling, Planning-based control of interface animation, Proceedings of the SIGCHI conference on Human factors in computing systems, CHI '95, pp.472-479, 1995.
DOI : 10.1145/223904.223968

J. C. Lester, S. A. Converse, S. E. Kahler, S. T. Barlow, B. A. Stone et al., The persona effect, Proceedings of the SIGCHI conference on Human factors in computing systems , CHI '97, pp.359-366, 1997.
DOI : 10.1145/258549.258797

J. C. Lester, S. A. Converse, B. A. Stone, S. E. Kahler, and S. T. Barlow, Animated pedagogical agents and problem-solving effectiveness: A large-scale empirical evaluation, Proceedings of Eighth World Conference on Artificial Intelligence in Education, pp.23-30, 1997.

J. C. Lester and B. W. Porter, Developing and empirically evaluating robust explanation generators: The KNIGHT experiments, Computational Linguistics, vol.23, issue.1, pp.65-101, 1997.

J. Lester, B. Stone, and G. Stelling, Lifelike Pedagogical Agents for Mixed-Initiative Problem Solving in Constructivist Learning Environments, User Modeling and User-Adapted Interaction, vol.9, issue.12, pp.1-44, 1999.
DOI : 10.1007/978-94-017-1118-0_5

J. Lester, J. Voerman, S. Towns, and C. Callaway, Deictic believability: Coordinated gesture, locomotion, and speech in lifelike pedagogical agents, Applied Artificial Intelligence, vol.13, issue.4-5, pp.4-5383, 1999.
DOI : 10.1080/088395199117324

S. Marsella and W. L. Johnson, An Instructor???s Assistant for Team-Training in Dynamic Multi-agent Virtual Worlds, Proceedings of the Fourth International Conference on Intelligent Tutoring Systems, pp.464-473, 1998.
DOI : 10.1007/3-540-68716-5_52

K. Mccoy, Generating context-sensitive responses to object-related misconceptions, Artificial Intelligence, vol.41, issue.2, pp.157-195, 19891990.
DOI : 10.1016/0004-3702(89)90009-X

T. Mengelle, C. D. Léan, and C. Frasson, Teaching and Learning with Intelligent Agents: Actors, Proceedings of the Fourth International Conference on Intelligent Tutoring Systems, pp.284-293, 1998.
DOI : 10.1007/3-540-68716-5_34

V. Mittal, Generating Natural Language Descriptions with Integrated Text and Examples, 1993.

J. D. Moore, Participating in Explanatory Dialogues, 1995.

A. Ortony, G. L. Clore, C. , and A. , The Cognitive Structure of Emotion, 1988.
DOI : 10.1017/CBO9780511571299

A. Paiva and I. Machado, Vincent, an Autonomous Pedagogical Agent for On-the-Job Training, Proceedings of the Fourth International Conference on Intelligent Tutoring Systems, pp.584-593, 1998.
DOI : 10.1007/3-540-68716-5_64

C. Pelachaud, N. I. Badler, and M. Steedman, Generating Facial Expressions for Speech, Cognitive Science, vol.24, issue.4, pp.1-46, 1996.
DOI : 10.1207/s15516709cog2001_1

B. Reeves and C. Nass, The Media Equation: How People Treat Computers, Television and New Media Like Real People and Places. CSLI, 1998.

J. Rickel and L. Johnson, Integrating pedagogical capabilities in a virtual environment agent, Proceedings of the first international conference on Autonomous agents , AGENTS '97, pp.30-38, 1997.
DOI : 10.1145/267658.267664

J. Rickel and W. L. Johnson, Animated agents for procedural training in virtual reality: Perception, cognition, and motor control, Applied Artificial Intelligence, vol.13, issue.4-5, pp.4-5343, 1999.
DOI : 10.1080/088395199117315

S. Ritter, Communication, cooperation, and competition among multiple tutor agents, Proceedings of the Eighth World Conference on Artificial Intelligence in Education, pp.31-38, 1997.

B. A. Stone and J. C. Lester, Dynamically sequencing an animated pedagogical agent, Proceedings of the Thirteenth National Conference on Artificial Intelligence, pp.424-431, 1996.

D. Suthers, A task-appropriate hybrid architecture for explanation, Computational Intelligence, vol.11, issue.4, pp.315-333, 1991.
DOI : 10.1016/S0004-3702(83)80014-9

S. Towns, C. Callaway, J. Voerman, and J. Lester, Coherent gestures, locomotion, and speech in life-like pedagogical agents, Proceedings of the 3rd international conference on Intelligent user interfaces , IUI '98, pp.13-20, 1998.
DOI : 10.1145/268389.268393

W. Wang and T. Chan, Experience of designing an agent-oriented programming language for developing social learning systems, Proceedings of Eighth World Conference on Artificial Intelligence in Education, pp.7-14, 1997.