1. Bolelov, S.B. (2012). Central Asian ceramics in the monuments of nomads of the Southern Urals. In: M.Iu. Trei-ster, L.T. Iablonskii (Eds.). Vliianiia akhemenidskoi kul'tury v Iuzhnom Priural'e (V–III vv. do n.e.). Т. 1. Mosсow: Taus, 208–219. (Rus.).
2. Bytkovskii, O.F. (2013). Settlements of the early Saka time in the Orenburg Trans-Urals. In: Sovremennye tendentsii v obrazovanii i nauke: Sbornik nauchnykh trudov po materialam mezhdunarodnoi nauchno-prakti-cheskoi konferentsii 31 oktiabria 2013 g. Chast' 3. Tambov: Biznes-Nauka-Obshchestvo, 19–21. (Rus.).
3. Fedorov, V.K., Vasil'ev, V.N. (1998). The Yakovlevsky mounds of the Early Iron Age in the Bashkir Trans-Urals. Ufimskii arkheologicheskii vestnik, (1), 62–96. (Rus.).
4. Gutsalov, S.Iu. (1996). Intake burials of pre-Sauromation time on the Ilek. Voprosy arkheologii Zapadnogo Kazakhstana, (1), 156–163. (Rus.).
5. Gutsalov S.Iu. (1998). A mound of the early Scythian time on the Ilek. Arkheologicheskie pamiatniki Oren-burzh'ia, (2), 127–136. (Rus.).