Moraes, S., & Machado, R. (2016). Chatterbot for Education: a Study based on Formal Concept Analysis for Instructional Material Recommendation. In Anais do XXVII Simpósio Brasileiro de Informática na Educação, (pp. 1347-1351). Porto Alegre: SBC. doi:10.5753/cbie.sbie.2016.1347