The star formation and chemical evolution history of the sculptor dwarf spheroidal galaxy T. J. L. de Boer, E. Tolstoy, V. Hill, A. Saha, K. Olsen, E. Starkenburg, B. Lemasle, M. J. Irwin and G. Battaglia A&A, 539 (2012) A103 Published online: 01 March 2012 DOI: 10.1051/0004-6361/201118378