@inproceedings{chen-yu2008a,
title={A geometric approach to problems in birational geometry},
author={Chen-Yu Chi, and Shing-Tung Yau},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224204314947115157},
booktitle={Proceedings of the National Academy of Sciences},
volume={105},
number={48},
pages={18696-18701},
year={2008},
}

Chen-Yu Chi, and Shing-Tung Yau. A geometric approach to problems in birational geometry. 2008. Vol. 105. In Proceedings of the National Academy of Sciences. pp.18696-18701. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224204314947115157.