GRELL, Petra; RAU, Franco. Participation under Compulsion. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 5, n. 4, p. pp. 26–30, 2010. DOI: 10.3991/ijet.v5i4.1458. Disponível em: https://online-journals.org/index.php/i-jet/article/view/1458. Acesso em: 25 apr. 2024.