@Article{MC-3-107,
author = {},
title = {读者来信},
journal = {数学文化},
year = {2012},
volume = {3},
number = {1},
pages = {107--107},
abstract = {},
issn = {2617-8656},
doi = {https://doi.org/},
url = {http://global-sci.org/intro/article_detail/mc/11539.html}
}