@inproceedings{kasimir1892über,
title={Über Biegungsinvarianten},
author={Kasimir Żorawski},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108202954341667967},
booktitle={Acta Mathematica},
volume={16},
number={1},
pages={1-64},
year={1892},
}