Matytsin, K. S., and E. A. Shershneva. “HISTORICAL CONDITIONS AND SPECIFICITY OF THE RESEARCH OF ALTAI «KAMENSСHIKS» IN THE RUSSIAN EMPIRE”. Social Integration and Development of Ethnic Cultures in the Eurasian Space, Vol. 2, no. 8, Nov. 2019, pp. 292-6, https://journal.asu.ru/sidec/article/view/6756.