Consistency analysis of a nonbirefringent Lorentz-violating planar model Rodolfo Casana, ManoelM. Ferreira and RoemirP.M. Moreira Eur. Phys. J. C, 72 7 (2012) 2070 Published online: 24 July 2012 DOI: 10.1140/epjc/s10052-012-2070-6