Distribution of palaeokarst water system and palaeogeomorphic unit characteristics of the Permian Maokou Formation in southern Sichuan Province
Sang Qin, Wei Yong, Cheng Chao, Huang Jing, He Shukun, , Guo Gui′an, Wu Changlong, Peng Zuoyuan
JOURNAL OF PALAEOGEOGRAPHY . 2012, (3): 393 -402 .  DOI: 10.7605/gdlxb.2012.03.013