Fluctuations of Stable Carbon Isotopes around the Permian-Triassic Boundary in Huaying of Sichuan, South China: Its Characteristics and Biogeochemical Origin
CUI Ying,LIU Jianbo,EZAKI Yoichi
Acta Scientiarum Naturalium Universitatis Pekinensis . 2009, (3): 461 -471 . 

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