Ibragimov, Magomed-Rasul Abdullaevic. “Dinamika Chislennosti Russkogo Naseleniya Dagestana(seredina XIX - Nachalo XXI v.)”. History, Archeology and Ethnography of the Caucasus, vol. 7, no. 4, Dec. 2011, pp. 128-40, https://doi.org/10.32653/CH74128-140.