MIKULEC, Anna, ZBOROWSKI, Marek, CISOŃ-APANSEWICZ, Urszula and KOWALSKI, Stanisław. COVID-19 and the nutrition of children and adolescents. Journal of Education, Health and Sport. Online. 3 February 2023. Vol. 13, no. Supplement Issue 2, pp. 11-21. [Accessed 17 July 2024]. DOI 10.12775/JEHS.2023.13.S2.001.