@article{article23683236,
title   = {Non-diffusive propagation of ultra high energy cosmic rays},
author = {Medina Tanco, Gustavo Adolfo and Gouveia dal Pino, Elisabete Maria de and Horvath, Jorge Ernesto},
year = {1997},
doi = {10.1016/s0927-6505(96)00068-0},
journal   = {Astroparticle Physics}
}