MathSciDoc: An Archive for Mathematician ∫

@inproceedings{ch.1900sur,
  title={Sur une question fondamentale du calcul integral},
  author={Ch. Riquier},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203005909346064},
  booktitle={Acta Mathematica},
  volume={23},
  number={1},
  pages={203-331},
  year={1900},
}