Revised statistics of radio halos and the reacceleration modelR. Cassano, G. Brunetti, T. Venturi, G. Setti, D. Dallacasa, S. Giacintucci and S. BardelliA&A, 480 3 (2008) 687-697DOI: https://doi.org/10.1051/0004-6361:20078986