1.
METELSKI, Adam and LESZCZYŃSKI, Marcin. The digital transformation of football clubs based on the example of social media. Journal of Education, Health and Sport. Online. 23 May 2022. Vol. 12, no. 5, pp. 204-214. [Accessed 2 May 2026]. DOI 10.12775/JEHS.2022.12.05.015.