Multi-wavelength observations of PKS 2155-304 with HESS F. Aharonian, A. G. Akhperjanian, A. R. Bazer-Bachi, M. Beilicke, W. Benbow, D. Berge, K. Bernlöhr, C. Boisson, O. Bolz, V. Borrel et al. (89 more) A&A, 442 3 (2005) 895-907 Published online: 14 October 2005 DOI: 10.1051/0004-6361:20053353