@inproceedings{po-ning2013quasilocal,
title={Quasilocal angular momentum and center of mass in general relativity},
author={Po-Ning Chen, Mu-Tao Wang, and Shing-Tung Yau},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160820152444711902324},
year={2013},
}

Po-Ning Chen, Mu-Tao Wang, and Shing-Tung Yau. Quasilocal angular momentum and center of mass in general relativity. 2013. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160820152444711902324.