@article{刘海桑:379,
author = {刘海桑},
title = {单系、并系、多系之评述},
publisher = {植物研究},
year = {2010},
journal = {植物研究},
volume = {30},
number = {3},
eid = {379},
numpages = {5},
pages = {379},
keywords = {图论;单系;并系;多系;集合论;格局支序论},
url = {https://bbr.nefu.edu.cn/CN/abstract/article_967.shtml},
doi = {10.7525/j.issn.1673-5102.2010.03.023}
}