Qvist, P.; Kangasniemi, T.; Palomäki, S.; Seppänen, J.; Joensuu, P.; Natri, O.; Närhi, M.; Palomäki, E.; Tiitu, H.; Nordström, K. Design of Virtual Learning Environments: Learning Analytics and Identification of Affordances and Barriers. Int. J. Eng. Ped. 2015, 5, pp. 64-75.