@inproceedings{Petrov:20214h,
  author = "Petrov, Igor  and  Knurenko, Stanislav",
  title = "{On the nature of particles that produces extensive air showers with energy greater than 5 EeV}",
  doi = "10.22323/1.395.0290",
  booktitle = "Proceedings of 37th International Cosmic Ray Conference {\textemdash} PoS(ICRC2021)",
  year = 2021,
  volume = "395",
  pages = "290"
}