Nejc, S., S. Loefler, J. Cvecka, M. Sedliak, and H. Kern. “Strength Training in Elderly People Improves Static Balance: A Randomized Controlled Trial”. European Journal of Translational Myology, Vol. 23, no. 3, July 2013, pp. 85-89, doi:10.4081/ejtm.2013.1777.