Abundances of Mn, Co and Eu in a sample of 20 F–G disk stars: the influence of hyperfine structure splittingE. F. del Peloso, K. Cunha, L. da Silva and G. F. Porto de MelloA&A, 441 3 (2005) 1149-1156DOI: https://doi.org/10.1051/0004-6361:20053077