@inproceedings{andré1963sur,
title={Sur certains groupes d'opérateurs unitaires},
author={André Weil},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203203718345974},
booktitle={Acta Mathematica},
volume={111},
number={1},
pages={143-211},
year={1963},
}