Kriytchenko, A. A. “THE VARIANT OF SYSTEMATIZATION OF THE HILL-FORTS OF SCYTHIAN AGE OF DNIEPER-DON FOREST-STEPPE INTERFLUVE”. Archaeology and Early History of Ukraine, vol. 31, no. 2, Mar. 2019, pp. 76-82, doi:10.37445/adiu.2019.02.05.