CHAŁUPNIK, Aleksandra, BORKOWSKA, Aleksandra, CHILIMONIUK, Zuzanna, DOBOSZ, Maciej, WIETESKA, Małgorzata and MIZERSKI, Grzegorz. Impact of the COVID-19 pandemic on the mental health of selected population groups . Journal of Education, Health and Sport. Online. 11 March 2022. Vol. 12, no. 3, pp. 32-41. [Accessed 17 August 2024]. DOI 10.12775/JEHS.2022.12.03.003.