HODGSON, Vivien. Changing Concepts of the Boundaries within ODL. Proceedings of the International Conference on Networked Learning , [S. l.], v. 2, p. 139–144, 2000. DOI: 10.54337/nlc.v2.9797. Disponível em: https://journals.aau.dk/index.php/nlc/article/view/9797. Acesso em: 22 jan. 2025.