The energy spectrum of ultra-high energy cosmic rays measured at the Pierre Auger Observatory and the Telescope Array
D. R. Bergman, O. Deligny, F. Fenu, T. Fujii, K. Fujita, J. H. Kim, I. Lhenry-Yvon, I. Maris¸, Q. Luce, M. Roth, F. Salamida, Y. Tsunesada, V. Verzi, for the Pierre Auger and the Telescope Array