Xu Jinli et al., 1997
From dinoflaj2
Xu Jinli, Pan Zhaoren, Yang Yumei, Zhu Youhua and Fan Naimin, 1997: On the Paleogene microphytoplankton from the Shenli oil-bearing region, Shandong, China. 241 p., 59 pl.; Petroleum University Press, Dongying, China. (In Chinese with English summary.)
