Relationship between high-frequency sea-level changes and organic matter of  Middle-Upper Ordovician marine source rocks from the Dawangou section in the Keping area,Xinjiang
GAO Zhiyong ZHANG Shuichang LIU Ye LI Jianjun ZHANG Baomin GU Qiaoyuan
Editorial office of ACTA PETROLEI SINICA . 2012, (2): 232 -240 .  DOI: 10.7623/syxb201202007