Chen, Dongxia, Xiongqi Pang, Liang Xiong, Lei Wang, and Mingxian Xie. 2015. “Porosity Evolution in Tight Gas Sands of the Upper Triassic Xujiahe Formation, Western Sichuan Basin, China”. Revista Mexicana De Ciencias Geológicas 31 (3):361-75. https://rmcg.unam.mx/index.php/rmcg/article/view/241.