For citations:

Sobolev D.B., Soboleva M.A., Evdokimova I.O. Ostracod zonation of the Givetian-Frasnian boundary interval in the Timan-North Urals Region. LITHOSPHERE (Russia). 2023;23(3):348-366. (In Russ.) https://doi.org/10.24930/1681-9004-2023-23-3-348-366