王青, Albert G. ABLAEV, 王宇飞, 李承森. 中国东北古新世乌云植物群: Woodwardia bureiensis, Dryopteris sp.和 Osmunda sachalinensis[J]. 植物分类学报, 2006, 44(6): 712-720.
WANG Qing, Albert G. ABLAEV, WANG Yu-Fei, LI Cheng-Sen. Paleocene Wuyun flora in Northeast China: Woodwardia bureiensis, Dryopteris sp. and Osmunda sachalinensis[J]. Acta Phytotaxonomica Sinica, 2006, 44(6): 712-720.