@inproceedings{lan-hsuan2016the,
title={The spacetime positive mass theorem in dimensions less than eight},
author={Lan-Hsuan Huang, Dan A. Lee, Richard Schoen, and Michael Eichmair},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20180314112731040217979},
booktitle={Journal of European Mathematical Society},
volume={18},
pages={83-121},
year={2016},
}

Lan-Hsuan Huang, Dan A. Lee, Richard Schoen, and Michael Eichmair. The spacetime positive mass theorem in dimensions less than eight. 2016. Vol. 18. In Journal of European Mathematical Society. pp.83-121. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20180314112731040217979.