@inproceedings{a.1932über, title={Über die Regelflächen sechsten Grades ohne Leitgerade}, author={A. Wiman}, url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203100237186497}, booktitle={Acta Mathematica}, volume={59}, number={1}, pages={1-62}, year={1932}, }