Chumak, Yehor. “The Scientific Ontology of Nikolai Hartmann Versus the Existentialism of Martin Heidegger”. Filosofiya osvity. Philosophy of Education 31, no. 2 (April 19, 2026): 174–184. Accessed April 20, 2026. https://philosopheducation.com/index.php/philed/article/view/946.