MathSciDoc: An Archive for Mathematician ∫

@inproceedings{herman1966a,
  title={A fix-point theorem with econometric background},
  author={Herman O. A. Wold},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203434966116049},
  booktitle={Arkiv for Matematik},
  volume={6},
  number={3},
  pages={209-220},
  year={1966},
}