@inproceedings{vito1903sur,
title={Sur la stratification d’une masse fluide en équilibre},
author={Vito Volterra},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203012313884118},
booktitle={Acta Mathematica},
volume={27},
number={1},
pages={105-124},
year={1903},
}