JAKUŠOVAITĖ, Irena. On Philosophical Prerequisites of Lenin’s Idea of Reflection as the Universal Quality of the Matter. Problemos, [S. l.], v. 25, p. 5–11, 1980. DOI: 10.15388/Problemos.1980.25.6272. Disponível em: https://test.zurnalai.vu.lt/problemos/article/view/6272. Acesso em: 26 oct. 2025.