1.
Zhiwen L, Jianhua G. Prospect of Middle Ordovician Yanxi Formation Black Shale in South Hunan Province. jmmf [Internet]. 2022 Oct. 20 [cited 2024 May 9];67(9):424-30. Available from: https://www.informaticsjournals.com/index.php/jmmf/article/view/31651