Malchrowicz-Mośko, E., M. Młodzik, and K. Chlebosz. “The Independence Running Events in Poland in 2018 – Motives of Participation. The Case Study of 8th Edition of the Independence Run in Luboń”. Journal of Education, Health and Sport, vol. 8, no. 12, Dec. 2018, pp. 232-44, https://apcz.umk.pl/JEHS/article/view/6364.