MathSciDoc: An Archive for Mathematician ∫

@inproceedings{f.1977spirals,
  title={Spirals and the universal Teichmüller space},
  author={F. W. Gehring},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203246813738244},
  booktitle={Acta Mathematica},
  volume={141},
  number={1},
  pages={99-113},
  year={1977},
}