Isański J, Kupiński S, Leszkowicz M, Andrzejewski W, Bykowski A. Outdoor fitness activity under COVID-19 restrictions. Wearable devices, images, and posts as sources of information on users. 10.14746/cis [Internet]. 19 lipiec 2023 [cytowane 18 czerwiec 2024];55:115-39. Dostępne na: https://pressto.amu.edu.pl/index.php/cis/article/view/38856