The bright end of the luminosity function at z ~ 9 N. Laporte, R. Pelló, M. Hayes, D. Schaerer, F. Boone, J. Richard, J. F. Le Borgne, J. P. Kneib and F. Combes A&A, 542 (2012) L31 Published online: 05 June 2012 DOI: 10.1051/0004-6361/201219486