@inproceedings{richard1981the,
title={The energy and the linear momentum of space-times in general relativity},
author={Richard Schoen, and Shing-Tung Yau},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224203708040994071},
booktitle={Communications in Mathematical Physics},
volume={79},
number={1},
pages={47-51},
year={1981},
}

Richard Schoen, and Shing-Tung Yau. The energy and the linear momentum of space-times in general relativity. 1981. Vol. 79. In Communications in Mathematical Physics. pp.47-51. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224203708040994071.