Streblyanska, A., Hasinger, G., Finoguenov, A., Barcons, X., Mateos, S., & Fabian, A. C. (2005). XMM-Newton observations of the Lockman Hole - III. A relativistic Fe line in the mean X-ray spectra of type-1 and type-2 AGN. Astronomy & Astrophysics, 432(2), 395-400. doi:10.1051/0004-6361:20041977.