@inproceedings{Nakatsuka:2021mf,
  author = "Nakatsuka, Takao  and  Iyono, Atsushi  and  Yamamoto, S.  and  Tsuji, S.  and  Okei, K.  and  Matsumoto, H.",
  title = "{An analytical derivation of the survival probability of muon penetrating through matters}",
  doi = "10.22323/1.395.1230",
  booktitle = "Proceedings of 37th International Cosmic Ray Conference {\textemdash} PoS(ICRC2021)",
  year = 2021,
  volume = "395",
  pages = "1230"
}