Photometric and spectroscopic observations of Sycorax, satellite of Uranus J. Romon, C. de Bergh, M. A. Barucci, A. Doressoundiram, J.-G. Cuby, A. Le Bras, S. Douté and B. Schmitt A&A, 376 1 (2001) 310-315 Published online: 15 September 2001 DOI: 10.1051/0004-6361:20010934