MathSciDoc: An Archive for Mathematician ∫

@inproceedings{gösta1952a,
  title={A generalization of a theorem of Nagell},
  author={Gösta Bergman},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203415933839884},
  booktitle={Arkiv for Matematik},
  volume={2},
  number={4},
  pages={299-305},
  year={1952},
}