Optimization of synthetic galaxy spectra - Application to ESA’s Gaia missionA. Karampelas, M. Kontizas, B. Rocca-Volmerange, I. Bellas-Velidis, E. Kontizas, E. Livanou, P. Tsalmantza and A. DapergolasA&A, 538 (2012) A38DOI: https://doi.org/10.1051/0004-6361/201117872