Motorova, Nadezhda S. “The Evolution of Zemski obligations’ System on the Territory of the Belarusian Provinces (the Second Half of the 19th – the Beginning of the 20th Century)”. Journal of the Belarusian State University. History, no. 3, July 2019, pp. 38-45, https://doi.org/10.33581/2520-6338-2019-3-38-45.