M. Samarakou, E. D. Fylladitakis, W. G. Früh, A. Hatziapostolou, and J. J. Gelegenis, “An Advanced eLearning Environment Developed for Engineering Learners”, Int. J. Emerg. Technol. Learn., vol. 10, no. 3, pp. pp. 22–33, Jun. 2015.