Fu De-zhi , Yang Qin-er. [J]. Journal of Systematics and Evolution, 1993, 31(4): 309-317.
Fu De-zhi , Yang Qin-er. New Morphological Interpretation of the Female Reproductive Organs in Ginkgo biloba L., with a Phylogenetic consideration on Gymnosperms (Cont.)[J]. J Syst Evol, 1993, 31(4): 309-317.