Drożak, P., Łukasz Bryliński, A. Bura, P. Duda, K. Augustowska, and G. Mizerski. “Determining Environmental Predictors of Subjective Feeling of Depressive Symptoms Among Polish Medical Students”. Journal of Education, Health and Sport, vol. 10, no. 5, May 2020, pp. 133-48, doi:10.12775/JEHS.2020.10.05.014.