VIENS, Jacques; WYRSCH, Arnold. eLearning: Evaluationskonzepte und Anwendungen. Swiss Journal of Educational Research, Bern, 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: 4 feb. 2025.