@Article{MC-2-0,
author = {},
title = {封底},
journal = {数学文化},
year = {2011},
volume = {2},
number = {1},
pages = {0--0},
abstract = {},
issn = {2617-8656},
doi = {https://doi.org/},
url = {http://global-sci.org/intro/article_detail/mc/11426.html}
}