ĆWIRLEJ, A.; WALICKA-CUPRYŚ, K.; GREGOROWICZ-CIEŚLIK, H. Motor activity of children aged 10 in free time. European Journal of Clinical and Experimental Medicine, [S. l.], v. 3, n. 3, p. 262–266, 2005. Disponível em: https://journals.ur.edu.pl/ejcem/article/view/13454. Acesso em: 6 aug. 2026.