Ruzbarsky, P., M. Zvonar, T. Vespalec, and M. Kokinda. “Comparison of Physical Itness of Slovak and American High School Populations Using Itnessgram”. SPORT TK-EuroAmerican Journal of Sport Sciences 7, no. 2 (September 23, 2018): 61–72. Accessed September 12, 2026. https://revistas.um.es/sportk/article/view/342931.