KOWALSKA, Jolanta Elżbieta and KOWALEWSKI, Michał. Self-assessment of the competences of early childhood education teachers to conduct lessons of physical activities. Journal of Education, Health and Sport. Online. 30 July 2020. Vol. 10, no. 8, pp. 62-71. [Accessed 16 June 2026]. DOI 10.12775/JEHS.2020.10.08.007.