For citations:
Sokiran E.V., Tolmacheva T.Yu., Markovskiy B.A., Evdokimova I.O. B. P. Markovskiy’s 130th anniversary: Key sections and brachiopods of the Frasnian Stage in the South Urals western slope (unpublished). Regional Geology and Metallogeny. 2025;32(3 (103)):51-78. (In Russ.) https://doi.org/10.52349/0869-7892_2025_103_51-78