Aqueous altered silicates at the surface of two Plutinos? C. de Bergh, H. Boehnhardt, M. A. Barucci, M. Lazzarin, S. Fornasier, J. Romon-Martin, G. P. Tozzi, A. Doressoundiram and E. Dotto A&A, 416 2 (2004) 791-798 Published online: 27 February 2004 DOI: 10.1051/0004-6361:20031727