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Fig. 8

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Abundance ratios in field and open cluster stars: the abundance ratios [El/Fe] versus [Fe/H] of solar neighbourhood dwarf stars (cyan empty triangles), and inner disk/bulge giant stars (red empty squares). Clusters are represented by their average values: Trumpler 20 (magenta filled circle), NGC 4815 (green filled triangle), and NGC 6705 (blue filled square).

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