The GIRAFFE Inner Bulge Survey (GIBS) - II. Metallicity distributions and alpha element abundances at fixed Galactic latitudeO. A. Gonzalez, M. Zoccali, S. Vasquez, V. Hill, M. Rejkuba, E. Valenti, A. Rojas-Arriagada, A. Renzini, C. Babusiaux, D. Minniti and T. M. BrownA&A, 584 (2015) A46DOI: https://doi.org/10.1051/0004-6361/201526737