@Article{CMSN-2-0,
author = {},
title = {封一},
journal = {中国数学会通讯},
year = {2021},
volume = {2},
number = {1},
pages = {0--0},
abstract = {},
issn = {},
doi = {https://doi.org/},
url = {http://global-sci.org/intro/article_detail/cmsn/19280.html}
}