VALIÑO, I. The Pierre Auger Observatory: Studying the Highest Energy Frontier. Ukrainian Journal of Physics, [S. l.], v. 64, n. 7, p. 646, 2019. DOI: 10.15407/ujpe64.7.646. Disponível em: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019442. Acesso em: 29 mar. 2024.