Svitlenko, Serhii. " Mykola Kostomarov’s historiosophical views on Ukrainian history: formation and evolution" Universum Historiae et Archeologiae = The Universe of History and Archeology = Універсум історії та археології = Универсум истории и археологии ISSN 2664-9950 (Print) ISSN 2707-6385 (Online) [Online], Volume 4 Number 2 (15 July 2022)