PYAE, A.; LIUKKONEN, T. N.; MIKA, L.; KATTIMERI, C.; CAUBERGHE, V.; SMED, J. Investigating the Finnish Elderly People’s Attitudes and Motivation towards Digital Game-Based Physical Exercises. Finnish Journal of eHealth and eWelfare, v. 9, n. 4, p. 265-283, 29 Nov. 2017.