VIENS, J.; WYRSCH, A. eLearning: Evaluationskonzepte und Anwendungen. Swiss Journal of Educational Research, [S. l.], v. 26, n. 2, p. 181–204, 2004. DOI: 10.24452/sjer.26.2.4676. Disponível em: https://sjer.ch/article/view/4676. Acesso em: 20 apr. 2024.