@inproceedings{piotr2010conformal,
title={CONFORMAL BOUNDARY EXTENSIONS OF LORENTZIAN MANIFOLDS},
author={Piotr T. Chrusciel},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160911204418694892811},
booktitle={Journal of Differential Geometry},
volume={84},
number={1},
pages={19-44},
year={2010},
}
Piotr T. Chrusciel. CONFORMAL BOUNDARY EXTENSIONS OF LORENTZIAN MANIFOLDS. 2010. Vol. 84. In Journal of Differential Geometry. pp.19-44. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160911204418694892811.