Marchuk Оleksandr. Vinnytsia period of the activity of UNR Minister of Education, Ivan Ogienko: contribution to the process of the national educational system formation (February 1919). Scientific Papers of the Vinnytsia Mykhailo Kotsyiubynskyi State Pedagogical University Series History, [S. l.], n. 29, p. 54–60, 2019. DOI: 10.31652/2411-2143-2019-29-54-60. Disponível em: https://intranet.vspu.edu.ua/nzhist/index.php/nzhist/article/view/598.. Acesso em: 18 may. 2024.