Arnold, W., E. Naumova, V. Koloda, and M. Ljubichev. “DENTAL WEAR IN TWO POPULATIONS OF THE KHAZAR KAGNAT REGION IN THE KHARKOV AREA, UKRAINE”. The Journal of V. N. Karazin Kharkiv National University, Series "Medicine", no. 9, 1, pp. 90-95, https://periodicals.karazin.ua/medicine/article/view/7202.