Ясновська ЛВ. A researcher of Old Russian antiquities of Chernigov is Semen Andronovich Gatsuk. The Journal of V. N. Karazin Kharkiv National University. Series: History [Internet]. 2019Aug.5 [cited 2024Apr.19];0(54):134-42. Available from: https://periodicals.karazin.ua/history/article/view/13625