Is the Lorentz limiting speed equal to the speed of light? Photons vs neutrino tests Jean-Marie Frère, Simon Mollet and MichelH.G. Tytgat Eur. Phys. J. C, 72 11 (2012) 2234 Published online: 30 November 2012 DOI: 10.1140/epjc/s10052-012-2234-4