@inproceedings{zhijie2020sharp,
title={Sharp nonexistence results for curvature equations with four singular sources on rectangular tori},
author={Zhijie Chen, and Chang-Shou Lin},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20190412091223492952232},
booktitle={American Journal of Mathematics},
pages={1269-1300},
year={2020},
}
Zhijie Chen, and Chang-Shou Lin. Sharp nonexistence results for curvature equations with four singular sources on rectangular tori. 2020. In American Journal of Mathematics. pp.1269-1300. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20190412091223492952232.