BibTex format
@article{Meli:2008:10.1051/0004-6361:20078681,
author = {Meli, A and Becker, JK and Quenby, JJ},
doi = {10.1051/0004-6361:20078681},
journal = {ASTRONOMY & ASTROPHYSICS},
pages = {323--336},
title = {On the origin of ultra high energy cosmic rays: subluminal and superluminal relativistic shocks},
url = {http://dx.doi.org/10.1051/0004-6361:20078681},
volume = {492},
year = {2008}
}