@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}, }