The high energy gamma-ray emission expected from Tycho's supernova remnant H. J. Völk, E. G. Berezhko, L. T. Ksenofontov and G. P. Rowell A&A, 396 2 (2002) 649-656 Published online: 03 December 2002 DOI: 10.1051/0004-6361:20021407