@article{Sandri:2018zJ,
  author = "Sandri, Paolo  and  Sharakin, Sergei  and  Mazzinghi, Piero  and  Takizawa, Yoshiyuki",
  title = "{Schmidt type optical system for the KLYPVE-EUSO UHECR detector}",
  doi = "10.22323/1.301.0451",
  journal = "PoS",
  year = 2018,
  volume = "ICRC2017",
  pages = "451"
}