X-ray observation of ULAS J1120+0641, the most distant quasar at z = 7.08A. Moretti, L. Ballo, V. Braito, A. Caccianiga, R. Della Ceca, R. Gilli, R. Salvaterra, P. Severgnini and C. VignaliA&A, 563 (2014) A46DOI: https://doi.org/10.1051/0004-6361/201323051
