EARLY ORDOVICIAN ORGANIC REEFS IN SONGZI,HUBEI
Zhu Zhongde, Liu Bingli, Meng Xianfu, Li Jianmin, Hu Mingyi, Xiao Chuantao, Li Weifeng
Oil & Gas Geology . 1990, (4): 418 -426 .  DOI: 10.11743/ogg19900408