@article{articlea94c3d51,
title   = {The Pierre Auger Observatory and its upgrade},
author = {Aab, A. and Catalani, Fernando and Peixoto, Carlos Jose Todero and Souza, Vitor de and Lang, Rodrigo Guedes and Martínez-Huerta, Humberto and Arbeletche, Luan Bonneau and Armand, Johnnier Pérez and Carvalho Junior, Washington Rodrigues de and Santos, Edivaldo Moura},
year = {2020},
doi = {10.52712/sciencereviews.v1i4.31},
journal   = {Science Reviews}
}