@article{Petrov:2021pA,
  author = "Petrov, Igor  and  Knurenko, Stanislav",
  title = "{Estimation of depth of maximum by relative muon content in air showers with energy greater than 5 EeV measured by the Yakutsk array}",
  doi = "10.22323/1.395.0289",
  journal = "PoS",
  year = 2021,
  volume = "ICRC2021",
  pages = "289"
}