POHL, Alexander; GEHLEN-BAUM, Vera; BRY, Francois. Enhancing the Digital Backchannel Backstage on the Basis of a Formative User Study. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 7, n. 1, p. pp. 33–41, 2012. DOI: 10.3991/ijet.v7i1.1898. Disponível em: https://online-journals.org/index.php/i-jet/article/view/1898. Acesso em: 27 apr. 2024.