@inproceedings{j.1899note,
title={Note zur Theorie der Deformation der Flächen},
author={J. Weingarten},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203004240497049},
booktitle={Acta Mathematica},
volume={22},
number={1},
pages={193-199},
year={1899},
}