The chemical composition of metal-poor emission-line galaxies in the Data Release 3 of the Sloan Digital Sky SurveyY. I. Izotov, G. Stasińska, G. Meynet, N. G. Guseva and T. X. ThuanA&A, 448 3 (2006) 955-970DOI: https://doi.org/10.1051/0004-6361:20053763
