Abundance pattern in terms of the ejecta of selected elements. These values correspond to a hypothetical case in which 1% of the matter ejected by our evolved models is homogeneously mixed in the 0.2 M_⊙ envelope of an unevolved low-mass Z = 10⁻⁵ star (see main text for justification). Black symbols correspond to observed abundances of selected CEMP-s stars from the SAGA database Suda et al. (2017). Models computed with Vassiliadis & Wood (1993) and with Bloecker (1995) are shown, respectively, in solid and dotted lines.