Galaxy evolution and star formation efficiency at 0.2 < z < 0.6 F. Combes, S. García-Burillo, J. Braine, E. Schinnerer, F. Walter and L. Colina A&A, 528 (2011) A124 Published online: 14 March 2011 DOI: 10.1051/0004-6361/201015739