@inproceedings{jian-guo2016existence,
title={Existence Theorems for a Multidimensional Crystal Surface Model},
author={Jian-Guo Liu, and Xiangsheng Xu},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170207203802505518260},
booktitle={SIAM Journal on Mathematical Analysis},
volume={48},
number={6},
pages={3667-3687},
year={2016},
}

Jian-Guo Liu, and Xiangsheng Xu. Existence Theorems for a Multidimensional Crystal Surface Model. 2016. Vol. 48. In SIAM Journal on Mathematical Analysis. pp.3667-3687. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170207203802505518260.