TY - JOUR
T1 - 封一
JO - 中国数学会通讯
VL - 1
SP - 0
EP - 0
PY - 2021
DA - 2021/06
SN - 2
DO - http://doi.org/
UR - https://global-sci.org/intro/article_detail/cmsn/19280.html
KW - 
AB -