An updated survey of globular clusters in M 31 - III. A spectroscopic metallicity scale for the Revised Bologna CatalogS. Galleti, M. Bellazzini, A. Buzzoni, L. Federici and F. Fusi PecciA&A, 508 3 (2009) 1285-1299DOI: https://doi.org/10.1051/0004-6361/200912583
