Occurrence of radio halos in galaxy clusters - Insight from a mass-selected sample V. Cuciti, R. Cassano, G. Brunetti, D. Dallacasa, R. Kale, S. Ettori and T. Venturi A&A, 580 (2015) A97 Published online: 07 August 2015 DOI: 10.1051/0004-6361/201526420