Extremely metal-poor turnoff stars abundances (Bonifacio+, 2009) et al
P Bonifacio M Spite; R Cayrel; V Hill; F Spite; P Francois; B Plez; H.-G Ludwig; E Caffau; P Molaro; E Depagne; J Andersen; Beatriz Leonor Silveira Barbuy; T. C Beers; B Nordström; F Primas