@inproceedings{arne1940ensembles,
title={Ensembles exceptionnels},
author={Arne Beurling},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203115439130613},
booktitle={Acta Mathematica},
volume={72},
number={1},
pages={1-13},
year={1940},
}