Zając, Anna, Katarzyna Dobko, Gabriela Frącz, Agata Glac, Klaudia Kuliga, Kinga Musz, Natalia Sejnowska, Agnieszka Socha, Agata Surowiec, and Kinga Śnieżek. 2023. “Causes of Depressive Disorders and Their Degree and Severity Among High School Students”. Journal of Education, Health and Sport 18 (1):123-46. https://doi.org/10.12775/JEHS.2023.18.01.012.