Searching for massive galaxies at z ≥ 3.5 in GOODS-North C. Mancini, I. Matute, A. Cimatti, E. Daddi, M. Dickinson, G. Rodighiero, M. Bolzonella and L. Pozzetti A&A, 500 2 (2009) 705-723 Published online: 19 March 2009 DOI: 10.1051/0004-6361/200810630