@inproceedings{Muraki:2023Qv,
  author = "Muraki, Yasushi  and  Miyake, S.  and  Koi, T.  and  Matsubara, Y.  and  Masuda, S.  and  Miranda, P.  and  Naito, T.  and  Ortiz, E.  and  Oshima, A.  and  Sako, T. K.  and  Shibata, S.  and  Takamaru, H.  and  Tokumaru, M.  and  Valdés-Galicia, J. F",
  title = "{Proton Penetration Efficiency over Sierra Negra (Mexico) and Oulu (Finland)}",
  doi = "10.22323/1.444.1256",
  booktitle = "Proceedings of 38th International Cosmic Ray Conference {\textemdash} PoS(ICRC2023)",
  year = 2023,
  volume = "444",
  pages = "1256"
}