[1]
Khramchenkova, R.K., Bakhmatova, V.N. and Sivitskiy, M.V. 2018. ARCHAEOMETRIC STUDY OF SPHERICAL CONES FROM EXCAVATION 200 OF BOLGAR SETTLEMENT. Arkheologiia Evraziiskikh Stepei (Archaeology of the Eurasian Steppes). 5 (May 2018), 238–241.