MathSciDoc: An Archive for Mathematician ∫

@inproceedings{torbjörn1971on,
  title={On the uniqueness of summable trigonometric series and integrals},
  author={Torbjörn Hedberg},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203447783509157},
  booktitle={Arkiv for Matematik},
  volume={9},
  number={1},
  pages={223-241},
  year={1971},
}