“«…They Came to the Town Yelets and Stood Near the Town, But Were Unable to Make the town…» (events of Summer, 1606 Near Yelets: Facts and Interpretation)”. PERM UNIVERSITY HERALD. History, vol. 28, no. 1, July 2020, pp. 165-73, https://press.psu.ru/index.php/history/article/view/3324.