MathSciDoc: An Archive for Mathematician ∫

@inproceedings{lars1935zur,
  title={Zur Theorie der Überlagerungsflächen},
  author={Lars Ahlfors},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203106734815546},
  booktitle={Acta Mathematica},
  volume={65},
  number={1},
  pages={157-194},
  year={1935},
}