@article{Gora:201940, author = "Gora, Dariusz and Cheminant, Kevin Almeida and Alvarez Castillo, David E. and Dhital, Niraj and Homola, Piotr and Jagoda, Pawel and Kopanski, Konrad and Kasztelan, Marcin and Kovacs, Peter and Marek, Marta and Nazaria, Vahab and Niedzwiecki, Michal and Smelcerz, Katarzyna and Smolek, Karel and Stasielak, Jarosław and Sushchov, Oleksandr and Rzecki, Krzysztof and Wibig, Tadeusz and Zamora-Saa, Jilberto", title = "{Search for Ultra-high Energy Photons: Observing the Preshower Effect with Gamma-ray Telescopes}", doi = "10.22323/1.358.0688", journal = "PoS", year = 2019, volume = "ICRC2019", pages = "688" }