Using Cepheids to determine the galactic abundance gradient - II. Towards the galactic centerS. M. Andrievsky, D. Bersier, V. V. Kovtyukh, R. E. Luck, W. J. Maciel, J. R. D. Lépine and Yu. V. BeletskyA&A, 384 1 (2002) 140-144DOI: https://doi.org/10.1051/0004-6361:20020016
