Evolution in the properties of Lyman- emitters from redshifts z ~ 3 to z ~ 2 K. K. Nilsson, C. Tapken, P. Møller, W. Freudling, J. P. U. Fynbo, K. Meisenheimer, P. Laursen and G. Östlin A&A, 498 1 (2009) 13-23 Published online: 05 March 2009 DOI: 10.1051/0004-6361/200810881