Abundances of carbon-enhanced metal-poor stars as constraints on their formation C. J. Hansen, B. Nordström, T. T. Hansen, C. R. Kennedy, V. M. Placco, T. C. Beers, J. Andersen, G. Cescutti and C. Chiappini A&A, 588 (2016) A37 Published online: 15 March 2016 DOI: 10.1051/0004-6361/201526895