Faint AGNs at z > 4 in the CANDELS GOODS-S field: looking for contributors to the reionization of the Universe
E. Giallongo, A. Grazian, F. Fiore, A. Fontana, L. Pentericci, E. Vanzella, M. Dickinson, D. Kocevski, M. Castellano, S. Cristiani, H. Ferguson, S. Finkelstein, N. Grogin, N. Hathi, A. M. Koekemoer, J. A. Newman and M. Salvato
A&A, 578 (2015) A83
DOI: https://doi.org/10.1051/0004-6361/201425334
