MathSciDoc: An Archive for Mathematician ∫

@inproceedings{hans1961on,
  title={On Bohr's spectrum of a function},
  author={Hans Wallin},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203425116152965},
  booktitle={Arkiv for Matematik},
  volume={4},
  number={2},
  pages={159-162},
  year={1961},
}