Zielińska, N., Ziółkowska, A., Winiarska, A., Świtaj, K., Wojtczak, P., Kujawska, A., Perkowski, R., Androsiuk-Perkowska, J., Gajos, M., Topka, W., Kujawski, S., Zalewski, P. and Kędziora-Kornatowska, K. 2017. Results of Fullerton Test in older people. Group comparison due to the Nordic Walking and long walks undertaking. Journal of Education, Health and Sport. 7, 7 (Jul. 2017), 247–257.