ДЕРЖКО, І. З. THE OBJECTS OF METAPHYSICAL COGNITION: ESSENCE AND PRODUCTIVE CONTENT. Proceedings of the Kyiv Aviation Institute. Series: Philosophy. Cultural, [S. l.], v. 11, n. 1, p. 32–35, 2015. DOI: 10.18372/2412-2157.11.8138. Disponível em: http://jrnl.kai.edu.ua/index.php/VisnikPK/article/view/8138. Acesso em: 13 jun. 2026.