Energy spectrum of ultrahigh-energy cosmic rays across declinations −90° to + 44.8° as measured at the Pierre Auger Observatory - Halim, Adila Binti Abdul; Catalani, Fernando; Souza, Vitor de; Santos, Edivaldo Moura; Oliveira, Cainã de; Peixoto, Carlos Jose Todero (Physical Review Letters, 2025)