[2] ZHOU Zhiyan, ZHENG Shaolin. Nature, 2003, 423: 821.
[7] Kim S W, Ban S H, Cho S, et al. Plant Cell Reports, 2004, 23: 246.
[12] Owen N L, Thomas D W. Applied Spectroscopy, 1989, 43(3): 451.
[13] Tanaka R C. Bot. Mag., 1980, 93: 167.
[16] Hasebe M. Molecular Phylogeny of Ginkgobiloba. Tokyo: Springer Verlag, 1997. 173.
[20] Royer D L, Hickey L J, Wing S L. Paleobiology, 2003, 29(1): 84.