KĘDZIA, Piotr. Around training pro-health behaviours of people leading an active lifestyle. Sleep as a natural way of regeneration. In: KOWALSKA, Jolanta Elżbieta; MAKARCZUK, Anna; MASZOREK-SZYMALA, Anna; KAŹMIERCZAK, Arkadiusz (eds.). Contemporary problems of physical and health culture. Poland: Lodz University Press,2022. p. 157–164. DOI: 10.18778/8220-945-7.11. Disponível em: https://www.press.uni.lodz.pl/index.php/wul/catalog/book/1255/chapter/3624. Acesso em: 15 feb. 2026.