Mukatayeva, L. 2021. The Cossack Economy in the Context of Developing Urban Environment on the Cusp of the XIX-XX Centuries (Based on the Data Provided by the Siberian Researcher G.Ye. Katanayev). Bulletin of the Karaganda university History. Philosophy series. 104, 4 (Dec. 2021), 84–93. DOI:https://doi.org/10.31489/2021hph4/84-93.