Ivangorodsky, Kostiantyn. “METHODOLOGICAL ASPECTS OF THE RECONSTRUCTION OF THE EAST-SLAVS ETHNIC HISTORY IN THE MODERN UKRAINIAN HISTORIOGRAPHY”. EAST EUROPEAN HISTORICAL BULLETIN, no. 9 (December 10, 2018): 146–153. Accessed November 22, 2024. http://eehb.dspu.edu.ua/article/view/150357.