Erzin, Alexandr, Zuzanna Gazdowska, and Małgorzata Piotrowska-Półrolnik. “When ‘social Existence Determines consciousness’: The Influence of Political System on Psychological Well-Being, Happiness, Proactive Coping, and Depression Levels Among Polish and Russian Citizens – a Cross-Cultural Study”. Journal of Education, Health and Sport 7, no. 4 (April 6, 2017): 342–359. Accessed April 23, 2024. https://apcz.umk.pl/JEHS/article/view/4381.