@inproceedings{ivar1900sur,
title={Sur les équations de l’équilibre d’un corps solide élastique},
author={Ivar Fredholm},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203005006285056},
booktitle={Acta Mathematica},
volume={23},
number={1},
pages={1-42},
year={1900},
}