@inproceedings{Petrov:2019JH,
  author = "Petrov, Igor  and  Knurenko, Stanislav",
  title = "{Second Knee in Cosmic Ray Spectrum at Energy $\sim$10$^{17}$ eV by Yakutsk Data}",
  doi = "10.22323/1.358.0384",
  booktitle = "Proceedings of 36th International Cosmic Ray Conference {\textemdash} PoS(ICRC2019)",
  year = 2019,
  volume = "358",
  pages = "384"
}