Ol'vija i skify v 5 v. do. n. ė. K voprosu o skifskom "protektorate". (Olbia and Scythians in the 5th century B. C. To the question of the Scythian "Protectorate") - Kryžickij, Sergej Dmitrievič (Archeologičeskie Vesti, 9 (2002), 2002)