@inproceedings{wei2014automorphic,
title={Automorphic period and the central value of Rankin-Selberg L-function},
author={Wei Zhang},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170315102824092857715},
booktitle={J. Amer. Math. Soc},
volume={27},
pages={541-612 },
year={2014},
}