Yakimenko, Elena, Svyatoslav Inozemtsev, and Sergey Naugolnykh. “Upper Permian Paleosols (Salarevskian Formation) in the Central Part of the Russian Platform: Paleoecology and Paleoenvironment”. Revista Mexicana de Ciencias Geológicas 21, no. 1 (May 18, 2018): 110–119. Accessed April 19, 2025. https://rmcg.unam.mx/index.php/rmcg/article/view/908.