K¯ photoproduction from protons A. Sibirtsev, J. Haidenbauer, S. Krewald, U. -G. Meißner and A. W. Thomas Eur. Phys. J. A, 31 2 (2007) 221-232 Published online: 15 February 2007 DOI: 10.1140/epja/i2006-10216-4