@Article{JCM-9-111,
author = {Qun Lin},
title = {Superconvergence of FEM for Singular Solution},
journal = {Journal of Computational Mathematics},
year = {1991},
volume = {9},
number = {2},
pages = {111--114},
abstract = { },
issn = {1991-7139},
doi = {https://doi.org/},
url = {http://global-sci.org/intro/article_detail/jcm/9383.html}
}