TY - JOUR AU - Abreu, P. AU - Bueno Villar, Antonio AU - Pierre Auger Collaboration PY - 2022 UR - https://hdl.handle.net/10481/78389 AB - The Pierre Auger Observatory, which is the largest air-shower experiment in the world, offers unprecedented exposure to neutral particles at the highest energies. Since the start of data collection more than 18 years ago, various searches for... LA - eng PB - MDPI KW - Photons KW - Ultra-high energies KW - Air showers KW - Pierre Auger Observatory KW - Upper limits KW - Transients TI - Searches for Ultra-High-Energy Photons at the Pierre Auger Observatory DO - 10.3390/universe8110579 ER -