Disentangling star formation and AGN activity in powerful infrared luminous radio galaxies at 1 < z < 4G. Drouart, B. Rocca-Volmerange, C. De Breuck, M. Fioc, M. Lehnert, N. Seymour, D. Stern and J. VernetA&A, 593 (2016) A109DOI: https://doi.org/10.1051/0004-6361/201526880