@Article{CMSN-3-0,
author = {},
title = {封二},
journal = {中国数学会通讯},
year = {2023},
volume = {3},
number = {4},
pages = {0--0},
abstract = {},
issn = {},
doi = {https://doi.org/},
url = {http://global-sci.org/intro/article_detail/cmsn/21330.html}
}