HIMPSL, Klaus; BAUMGARTNER, Peter. Evaluation of E-Portfolio Software. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 4, n. 1, p. pp. 16–22, 2009. DOI: 10.3991/ijet.v4i1.831. Disponível em: https://online-journals.org/index.php/i-jet/article/view/831. Acesso em: 27 apr. 2024.