Zając, A., Dobko, K., Frącz, G., Glac, A., Kuliga, K., Musz, K., Sejnowska, N., Socha, A., Surowiec, A., & Śnieżek, K. (2023). Causes of depressive disorders and their degree and severity among high school students. Journal of Education, Health and Sport, 18(1), 123–146. https://doi.org/10.12775/JEHS.2023.18.01.012