1. [1] R. Wallace, “Alice-artificial linguistic internet computer entity-the alice ai. foundation,” Disponivel em http://www.alicebot.org. Acesso em, vol.18, 1995.
2. [2] J. Weizenbaum, “Eliza — a computer program for the study of natural language communication between man and machine,” Commun. ACM, vol.9, no.1, pp.36-45, 1966.
3. [3] A. Kerly, P. Hall, and S. Bull, “Bringing chatbots into education: Towards natural language negotiation of open learner models,” Knowledge-Based Systems, vol.20, no.2, pp.177-185, 2007.
4. [4] B. Heller, M. Proctor, D. Mah, L. Jewell, and B. Cheung, “Freudbot: An investigation of chatbot technology in distance education,” World Conference on Educational Multimedia, Hypermedia and Telecommunications, pp.3913-3918, 2005.
5. [5] S.D. Krashen, The Input Hypothesis: Issues and Implications, Longman London, 1985.