A U-band survey of brown dwarfs in the Taurus molecular cloud with the XMM-Newton optical/UV monitorN. Grosso, M. Audard, J. Bouvier, K. R. Briggs and M. GüdelA&A, 468 2 (2007) 557-562DOI: https://doi.org/10.1051/0004-6361:20065425