@inproceedings{hermann1902über,
title={Über periodische Approximationen algebraischer Zahlen},
author={Hermann Minkowski},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203011634961112},
booktitle={Acta Mathematica},
volume={26},
number={1},
pages={333-351},
year={1902},
}