S. V. Vinogradov and Y. G. Eshchenko, “Rural population of the Volga-Caspian fishing region in the second half of the 19th - early 20th centuries: Features of formation, social structure, specific economic activity”, Russian Peasant Studies, vol. 10, no. 2, pp. 83–102, Jan. 2025, Accessed: Nov. 07, 2026. [Online]. Available: https://peasantstudies.owebs.ru/article/view/275