MathSciDoc: An Archive for Mathematician ∫

@inproceedings{trygve1958sur,
  title={Sur une classe d’équations exponentielles},
  author={Trygve Nagell},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203423907601954},
  booktitle={Arkiv for Matematik},
  volume={3},
  number={6},
  pages={569-582},
  year={1958},
}