Astrostratigraphic research on the Neogene Minghuazhen Formation in Dongying Sag，Shandong Province
Xu Daoyi, Yao Yimin, Han Yanben, Yin Zhiqiang, Zhang Haifeng
JOURNAL OF PALAEOGEOGRAPHY . 2008, (3): 287 -296 .  DOI: 10.7605/gdlxb.2008.03.008