Superluminal neutrinos from Lorentz-violating dimension-5 operators C.A.G. Almeida, M.A. Anacleto, F.A. Brito and E. Passos Eur. Phys. J. C, 72 1 (2012) 1855 Published online: 03 January 2012 DOI: 10.1140/epjc/s10052-011-1855-3