@inproceedings{Tkachenko:20211/,
  author = "Tkachenko, Olena  and  Engel, Ralph  and  Ulrich, Ralf  and  Unger, Michael",
  title = "{Study on the Combined Estimate of the Cosmic-Ray Composition and Particle Cross Sections at Ultrahigh Energies}",
  doi = "10.22323/1.395.0438",
  booktitle = "Proceedings of 37th International Cosmic Ray Conference {\textemdash} PoS(ICRC2021)",
  year = 2021,
  volume = "395",
  pages = "438"
}