@article{article5a0c1fe1,
title   = {Observation of the Suppression of the Flux of Cosmic Rays above 4 X '10 POT.19´ eV},
author = {Abraham, J and Gouffon, Philippe},
year = {2008},
doi = {10.1103/PhysRevLett.101.061101},
journal   = {Physical Review Letters}
}