R. N. Rakhimov, B. A. Aznabaev, and I. V. Frolova, “The image of a horseman in the sunlight: Heraldic cases of Bashkortostan and Tuva”, НИТ, no. 3, pp. 226–240, Sep. 2022, doi: 10.25178/nit.2022.3.15.