Overdensities of 24 μm sources in the vicinities of high-redshift radio galaxies J. H. Mayo, J. Vernet, C. De Breuck, A. Galametz, N. Seymour and D. Stern A&A, 539 (2012) A33 Published online: 22 February 2012 DOI: 10.1051/0004-6361/201118254