Infrared-faint radio sources in the SERVS deep fields - Pinpointing AGNs at high redshiftA. Maini, I. Prandoni, R. P. Norris, L. R. Spitler, A. Mignano, M. Lacy and R. MorgantiA&A, 596 (2016) A80DOI: https://doi.org/10.1051/0004-6361/201629391