BISCHOFF, Andreas. M-Learning, Mobile Experimentation and Telepresence with Cell Phones and PDAs. International Journal of Interactive Mobile Technologies (iJIM), [S. l.], v. 3, n. 1, p. pp. 49–52, 2008. DOI: 10.3991/ijim.v3i1.703. Disponível em: https://online-journals.org/index.php/i-jim/article/view/703. Acesso em: 3 may. 2024.