Sapovalov, Sergej Nikolaevic. “EXPANSION OF THE TERRITORY OF THE TRANS-KUBAN SETTLEMENT IN THE 40S OF THE 19TH CENTURY”. History, Archeology and Ethnography of the Caucasus, vol. 19, no. 2, July 2023, pp. 371-84, https://doi.org/10.32653/CH192371-384.