X-Shooter study of accretion in ρ-Ophiucus: very low-mass stars and brown dwarfs C. F. Manara, L. Testi, A. Natta and J. M. Alcalá A&A, 579 (2015) A66 Published online: 29 June 2015 DOI: 10.1051/0004-6361/201526169