MathSciDoc: An Archive for Mathematician ∫

@inproceedings{dennis1981a,
  title={A finiteness theorem for cusps},
  author={Dennis Sullivan},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203256112637308},
  booktitle={Acta Mathematica},
  volume={147},
  number={1},
  pages={289-299},
  year={1981},
}