ВЕРТІЙ О. І. Vertiy O. I. “…and how difficult is to be a man in our time” (from the correspondence of Joseph Dudka, Mykola Danko, Leonid Maletsky and Petro Rotach). Philological Treatises, [S. l.], v. 2, n. 2, p. 42–64, 2020. Disponível em: https://tractatus.sumdu.edu.ua/index.php/journal/article/view/754. Acesso em: 27 nov. 2021.