The Electronic Journal of e-Learning

Busch, Carsten; Steinicke, Martin; et. al.: The Electronic Journal of e-Learning, Vol. 13 Issue 3, 2015. Herausgeber: Busch, Carsten; Steinicke, Martin. Sonderheft/Sonderband von: The Electronic Journal of e-Learning. Ausgabe: Issue 3. Band: Volume 13, S. 149-206, Academic Publishing Limited, Reading, 2015, ISSN 1479-4403