@inproceedings{viggo1958carl,
title={Carl Störmer in memoriam},
author={Viggo Brun},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203148549004860},
booktitle={Acta Mathematica},
volume={100},
number={1},
pages={I-VII},
year={1958},
}