DUAN Yi，WU Ying-zhong，ZHAO Yang，CAO Xi-xi . Carbon and Hydrogen Isotopic Compositional Features of Hydrocarbon Gases Generated by Different Coal-forming Materials[J]. Natural Gas Geoscience, 2015 , 26(12) : 2365 -2371 . DOI: 10.11764/j.issn.1672-1926.2015.12.2365

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