@inproceedings{peter1984on,
title={On the parabolic kernel of the Schrödinger operator},
author={Peter Li, and Shing Tung Yau},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203306241562384},
booktitle={Acta Mathematica},
volume={156},
number={1},
pages={153-201},
year={1984},
}
Peter Li, and Shing Tung Yau. On the parabolic kernel of the Schrödinger operator. 1984. Vol. 156. In Acta Mathematica. pp.153-201. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203306241562384.