@inproceedings{jean1937sur,
title={Sur les surfaces possédant un nombre fini de paratingentes secondes},
author={Jean Mirguet},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203110454492573},
booktitle={Acta Mathematica},
volume={68},
number={1},
pages={293-300},
year={1937},
}
Jean Mirguet. Sur les surfaces possédant un nombre fini de paratingentes secondes. 1937. Vol. 68. In Acta Mathematica. pp.293-300. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203110454492573.