====== KA-TP-11-2005 Spacetime foam and high-energy photons ====== F.R. Klinkhamer, C. Rupp Invited talk at A Life with Stars: In Honor of Ed van den Heuvel, Amsterdam, The Netherlands, 22-26 Aug 2005. KA-TP-11-2005 erhältlich unter astro-ph/0511267 Download: [[http://arxiv.org/abs/astro-ph/0511267|astro-ph/0511267]] \\ \\ \\