MULEVIČIUS, Leonas. Social Psychology and Investigations of History. Problemos, [S. l.], v. 5, p. 67–75, 1970. DOI: 10.15388/Problemos.1970.5.5780. Disponível em: https://test.zurnalai.vu.lt/problemos/article/view/5780. Acesso em: 28 oct. 2025.