M. Drużbicki, G. Przysada, J. Rykała, J. Podgórska, A. Guzik, and K. Kołodziej, “Evaluation of the effectiveness of selected scales and methods used in the assessment of gait and balance after a cerebral stroke”, Eur J Clin Exp Med, vol. 11, no. 1, pp. 21–31, Mar. 2013.