@inproceedings{Väisänen:20195f,
  author = "Väisänen, Pauli  and  Usoskin, Ilya  and  Mursula, Kalevi",
  title = "{Spectral slope analysis of long-term cosmic-rayvariations at Earth}",
  doi = "10.22323/1.358.1165",
  booktitle = "Proceedings of 36th International Cosmic Ray Conference {\textemdash} PoS(ICRC2019)",
  year = 2019,
  volume = "358",
  pages = "1165"
}