@inproceedings{xia2014optimal, title={Optimal penalty parameter for C^0 IPDG}, author={Xia Ji, Jiguang Sun, and Yang Yang}, url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170130224730438990144}, booktitle={Applied Mathematics Letters}, volume={37}, pages={112-117}, year={2014}, }