The extremely low-metallicity tail of the Sculptor dwarf spheroidal galaxy E. Starkenburg, V. Hill, E. Tolstoy, P. François, M. J. Irwin, L. Boschman, K. A. Venn, T. J. L. de Boer, B. Lemasle, P. Jablonka et al. (3 more) A&A, 549 (2013) A88 Published online: 03 January 2013 DOI: 10.1051/0004-6361/201220349