@inproceedings{richard1997the,
title={The Harnack estimate for the Ricci flow on a surfacerevisited},
author={Richard S Hamilton, and Shing-Tung Yau},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224204624495893202},
booktitle={Asian Journal of Mathematics},
volume={1},
number={3},
pages={418-421},
year={1997},
}
Richard S Hamilton, and Shing-Tung Yau. The Harnack estimate for the Ricci flow on a surfacerevisited. 1997. Vol. 1. In Asian Journal of Mathematics. pp.418-421. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224204624495893202.