Guan, Modi, Songtao Wu, Lianhua Hou, Xiaohua Jiang, Dan Ba, and Ganlin Hua. “Paleoenvironment and Chemostratigraphy Heterogenity of the Cretaceous Organic-Rich Shales”. Advances in Geo-Energy Research 5, no. 4 (December 7, 2021): 444–455. Accessed June 13, 2026. https://www.astp-agr.com/index.php/2207-9963/article/view/181.