Stable hydrogen isotopic characteristics of natural gas from the Xujiahe Formation in the central Sichuan Basin and its implications for water salinization 
Ni Yun-yan, Liao Feng-rong, Yao Li-miao, Gao Jin-liang, Zhang Di-jia
Natural Gas Geoscience . 2019, (6): 880 -896 .  DOI: 10.11764/j.issn.1672-1926.2019.05.015