МАҐОЧІЙ, П. Р. The Fellow Who Made Himself President of a European Republic: Gregory Ignatius Zhatkovych. Rocznik Ruskiej Bursy, [S. l.], v. 16, p. 207–240, 2020. DOI: 10.12797/RRB.16.2020.16.06. Disponível em: https://journals.akademicka.pl/rrb/article/view/2356. Acesso em: 6 oct. 2022.