Article ISI
ASTRONOMY & ASTROPHYSICS  (2012)

Unveiling the nature of INTEGRAL objects through optical spectroscopy IX. Twenty two more identifications, and a glance into the far hard X-ray Universe

Masetti, N; Parisi, P; Jimenez-Bailon, E; Palazzi, E; Chavushyan, V; Bassani, L; Bazzano, A; Bird, AJ; Dean, AJ; Galaz, G; Landi, R; Malizia, A; Minniti, D; Morelli, L; Schiavone, F; Stephen, JB; Ubertini, P