@inproceedings{ostrowki1942sur,
title={Sur les transformations réversibles d'éléments de ligne},
author={Ostrowki Alexandre},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203119114290639},
booktitle={Acta Mathematica},
volume={75},
number={1},
pages={151-182},
year={1942},
}