PoS 37th International Cosmic Ray Conference 37th International Cosmic Ray Conference, Jul 2021, Berlin, Germany. pp.206, ⟨10.22323/1.395.0206⟩ PoS, Proceedings of Science : 37th International Cosmic Ray Conference ICRC2021 | 37th International Cosmic Ray Conference (ICRC2021)-CRI-Cosmic Ray Indirect | 12-23 Julio 2021 | Berlin (Alemania) Archivo Digital UPM Universidad Politécnica de Madrid