XMM-Newton observation of an unusual iron line in the quasar Markarian 205 J. N. Reeves, M. J. L. Turner, K. A. Pounds, P. T. O'Brien, Th. Boller, P. Ferrando, E. Kendziorra and S. Vercellone A&A, 365 1 (2001) L134-L139 Published online: 15 January 2001 DOI: 10.1051/0004-6361:20000424