The broad-band spectrum of the persistent emission from SGR 1806-20 S. Molkov, K. Hurley, R. Sunyaev, P. Shtykovsky, M. Revnivtsev and C. Kouveliotou A&A, 433 2 (2005) L13-L16 Published online: 22 March 2005 DOI: 10.1051/0004-6361:200500087