On the α-element gradients of the Galactic thin disk using Cepheids K. Genovali, B. Lemasle, R. da Silva, G. Bono, M. Fabrizio, M. Bergemann, R. Buonanno, I. Ferraro, P. François, G. Iannicola et al. (9 more) A&A, 580 (2015) A17 Published online: 22 July 2015 DOI: 10.1051/0004-6361/201525894