BARTELS, Jörn. Lernen durch die Hintertür. Neue Lernformen in der Lebensspaane - C.W. Wedemeyer. International Journal of E-Learning & Distance Education / Revue internationale du e-learning et la formation à distance, [S. l.], v. 2, n. 1, p. 97–98, 1987. Disponível em: https://ijede.ca/index.php/jde/article/view/572. Acesso em: 29 apr. 2024.