SIMPLE ANALYSIS OF THE CONDITIONS OF REEF FORMING PETROLEUM IN UPPER PERMIAN CHANGXIN SERIES OF BEIBEI，SICHUAN
Zheng Yong -jian Lin Wei-cheng Wang Ting-dong
西南石油大学学报(自然科学版) . 1986, (3): 1 -11 .  DOI: 10.3863/j.issn.1000-2634.1986.03.001