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2. Kuzmynih, S.V., Degtyareva, A.D.: Tsvetnaya metalloobrabotka itkulskoi kultury: (Predvaritelnye rezultaty analiticheskih issledovaniy) (Itkul Culture's colored metal processing: (Preliminary results of analytical researches). Vestnik arheologii (Bulletin of Archaeology), 57–66 (2015) (in Russian)
3. Myshkin, V.N.: Psalii s zoomorfnymi izobrazheniami u kochevnikov Samaro-Uralskogo regiona v VI–IV vv. do. n.e. (Nomadic cheek-pieces with zoomorphic images of the VI–IV centuries B.C. from Samaro-Uralic region). Nizhnevolzhskiy arheologicheskiy vestnik (The Lower Volga Archaeological Bulletin) vol. 2. pp. 56–73. (2020) (in Russian)
4. Perevodchikova, E.V., Tairov, A.D.: Iskusstvo rannesakskogo vremeni Iuzhnogo Urala i ego vostochnye paralleli (Eastern parallels of South-Uralic art of early saki’s time). Stratum plus. Arkheologia i kulturnaya antropologia (Stratum plus. Archaeology and Cultural Anthropology) vol. 3. pp. 121–141. (2015) (in Russian)
5. Polidovich, Iu.B.: Zoomorfno oformlennye psalii kak fenomen skifskoi epokhi (Zoomorphic cheekpieces as a phenomenon of Scythian time). Arheologicheskiy Almanah (archaeological Almanac) 15, 143–165 (2004). (in Russian)