@inproceedings{Petukhova:2017ge,
  author = "Petukhova, Anastasia  and  Petukhov, Ivan  and  Petukhov, Stanislav",
  title = "{Toroidal Models of the Force-free Magnetic Field}",
  doi = "10.22323/1.301.0121",
  booktitle = "Proceedings of 35th International Cosmic Ray Conference {\textemdash} PoS(ICRC2017)",
  year = 2017,
  volume = "301",
  pages = "121"
}