XMM-Newton reveals a Seyfert-like X-ray spectrum in the z = 3.6 QSO B1422+231M. Dadina, C. Vignali, M. Cappi, G. Lanzuisi, G. Ponti, B. De Marco, G. Chartas and M. GiustiniA&A, 592 (2016) A104DOI: https://doi.org/10.1051/0004-6361/201628467