@inproceedings{Grillo:2008GO, author = "Grillo, Aurelio", title = "{What the Pierre Auger Observatory can and cannot tell about Quantum Gravity Phenomenology: spectrum, composition and origin of the highest energy Cosmic Rays}", doi = "10.22323/1.043.0017", booktitle = "Proceedings of From Quantum to Emergent Gravity: Theory and Phenomenology {\textemdash} PoS(QG-Ph)", year = 2008, volume = "043", pages = "017" }