BOYCHUK , Y. . Ivan Fedorovych Prokopenko is 85 years old!. New Collegium, [S. l.], v. 1, n. 103, p. 3–10, 2021. DOI: 10.30837/nc.2021.1.03. Disponível em: http://newcollegium.nure.ua/article/view/243169. Acesso em: 30 apr. 2024.