@inproceedings{helge1901sur,
title={Sur quelques points de la théorie des déterminants infinis},
author={Helge von Koch},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203006457878068},
booktitle={Acta Mathematica},
volume={24},
number={1},
pages={89-122},
year={1901},
}