Pyae, A., T. N. Liukkonen, L. Mika, C. Kattimeri, V. Cauberghe, and J. Smed. “Investigating the Finnish Elderly People’s Attitudes and Motivation towards Digital Game-Based Physical Exercises”. Finnish Journal of EHealth and EWelfare, Vol. 9, no. 4, Nov. 2017, pp. 265-83, doi:10.23996/fjhw.60518.