Marchuk О. (2019) “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, (29), pp. 54–60. doi:10.31652/2411-2143-2019-29-54-60.