Radio and X-ray diffuse emission in six clusters of galaxies F. Govoni, L. Feretti, G. Giovannini, H. Böhringer, T. H. Reiprich and M. Murgia A&A, 376 3 (2001) 803-819 Published online: 15 September 2001 DOI: 10.1051/0004-6361:20011016