[1]
A. . Sarapulov, “ABOUT THE TIME OF APPEARANCE OF PLOUGH FARMING IN THE PERM CIS-URALS”, ВПФИЦ, no. 3, pp. 37–41, Jan. 2017, Accessed: Jul. 23, 2026. [Online]. Available: https://journal.permsc.ru/index.php/pscj/article/view/PSCJ2016n3p6