@inproceedings{j.1887zur, title={Zur Theorie des Flächenpotentials}, author={J. Weingarten}, url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108202942643060860}, booktitle={Acta Mathematica}, volume={10}, number={1}, pages={303-309}, year={1887}, }