GMRT radio halo survey in galaxy clusters at z = 0.2–0.4 - I. The REFLEX sub-sampleT. Venturi, S. Giacintucci, G. Brunetti, R. Cassano, S. Bardelli, D. Dallacasa and G. SettiA&A, 463 3 (2007) 937-947DOI: https://doi.org/10.1051/0004-6361:20065961
