@inproceedings{mu-tao2007a,
title={A generalization of Liu-Yau's quasi-local mass},
author={Mu-Tao Wang, and Shing-Tung Yau},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160821225405019769371},
booktitle={Communications in Analysis and Geometry},
volume={15},
number={2},
pages={249-282.},
year={2007},
}
Mu-Tao Wang, and Shing-Tung Yau. A generalization of Liu-Yau's quasi-local mass. 2007. Vol. 15. In Communications in Analysis and Geometry. pp.249-282.. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160821225405019769371.