@inproceedings{vito1892sur,
title={Sur les vibrations lumineuses dans les milieux biréfringents},
author={Vito Volterra},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108202954825125971},
booktitle={Acta Mathematica},
volume={16},
number={1},
pages={153-215},
year={1892},
}