%A Lin You-Xin %T A systematic study of the family Azollaceae with reference to the extending utilization of certain species in China %0 Journal Article %D 1980 %J J Syst Evol %R %P 450-456 %V 18 %N 4 %U {https://www.jse.ac.cn/CN/abstract/article_18071.shtml} %8 1980-11-18 %X