“Establishment of the prince’s power in the lands of the upper Oka (late 10th - first half of the 12th century)”, Вестник государственного и муниципального управления, vol. 13, no. 2, pp. 60–70, Feb. 2024, Accessed: Sep. 28, 2026. [Online]. Available: https://vestnik-gmu.owebs.ru/article/view/18327