Limits on an Energy Dependence of the Speed of Light from a Flare of the Active Galaxy PKS 2155-304

Study of Time Lags inHETE‐2Gamma‐Ray Bursts with Redshift: Search for Astrophysical Effects and a Quantum Gravity Signature

(2008) J. Bolmont et al.   ASTROPHYSICAL JOURNAL

Study of Lorentz violation in INTEGRAL gamma-ray bursts

(2008) Raphael Lamon et al.   GENERAL RELATIVITY AND GRAVITATION

Lorentz-violation-induced arrival delays of cosmological particles

(2008) Uri Jacob et al.   JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS

Lorentz Violation for Photons and Ultrahigh-Energy Cosmic Rays

(2008) Matteo Galaverni et al.   PHYSICAL REVIEW LETTERS

Derivation of a vacuum refractive index in a stringy space–time foam model

(2008) John Ellis et al.   PHYSICS LETTERS B

Probing quantum gravity using photons from a flare of the active galactic nucleus Markarian 501 observed by the MAGIC telescope

(2008) J. Albert et al.   PHYSICS LETTERS B