FRYDRYCH-SZYMONIK, Aleksandra; AUGUSTYN, Gabriela; SZYGUŁA, Zbigniew. Znaczenie snu i sposoby poprawy jego jakości u sportowców = Impact of sleep and methods to improve its quality in the context of sporting activities. Journal of Education, Health and Sport, [S. l.], v. 6, n. 5, p. 157–176, 2016. Disponível em: https://apcz.umk.pl/JEHS/article/view/3518. Acesso em: 28 apr. 2025.