Woitas-Ślubowska, Donata, Ewelina Żyżniewska-Banaszak, and Anna Skarpańska-Stejnborn. “Relationships Between Adults` Participation in Leisure Time Physical Activity and Demographic Factors. Part I: Gender and Age – Review and Update”. Journal of Education, Health and Sport 6, no. 8 (August 31, 2016): 898–911. Accessed November 24, 2024. https://apcz.umk.pl/JEHS/article/view/4146.