@inproceedings{s.1940sur,
title={Sur les fonctions indéfiniment dérivables},
author={S. Mandelbrojt},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203115570976614},
booktitle={Acta Mathematica},
volume={72},
number={1},
pages={15-29},
year={1940},
}