VLT/NACO coronagraphic observations of fine structures in the disk of β Pictoris A. Boccaletti, J.-C. Augereau, P. Baudoz, E. Pantin and A.-M. Lagrange A&A, 495 2 (2009) 523-535 Published online: 20 January 2009 DOI: 10.1051/0004-6361:200811067