RAVET, Serge. Guest Editorial. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 4, n. 1, p. p. 4, 2009. DOI: 10.3991/ijet.v4i1.848. Disponível em: https://online-journals.org/index.php/i-jet/article/view/848. Acesso em: 19 apr. 2024.