@Article{JCM-27-561,
author = {},
title = {Preface},
journal = {Journal of Computational Mathematics},
year = {2009},
volume = {27},
number = {5},
pages = {561--562},
abstract = {},
issn = {1991-7139},
doi = {https://doi.org/},
url = {http://global-sci.org/intro/article_detail/jcm/10366.html}
}