@inproceedings{paul1903sur,
title={Sur les fonctions qui admettent un théorème d’addition},
author={Paul Painlevé},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203011943455115},
booktitle={Acta Mathematica},
volume={27},
number={1},
pages={1-54},
year={1903},
}