Samodurov, Vladimir P., and Vitali E. Kutyrlo. “Rhythmicity of Petrikov Deposit Upper Devonian Overlying Bed by the Core Photogrammetry”. Journal of the Belarusian State University. Geography and Geology, no. 1 (January 19, 2019): 53–63. Accessed October 14, 2026. https://journals.bsu.by/index.php/geography/article/view/1031.