HALVONÍK, Dominik; PSENAK, Peter. Design of an Educational Virtual Assistant Software. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 16, n. 11, p. pp. 308–321, 2021. DOI: 10.3991/ijet.v16i11.19847. Disponível em: https://online-journals.org/index.php/i-jet/article/view/19847. Acesso em: 3 may. 2024.