[Ba/Eu] vs. [Fe/H]. Filled yellow circles are our data for NGC 6528, filled blue triangles: NGC 6440 (Muñoz et al. 2017) filled red triangles: NGC 6441 (Gratton et al. 2006), filled magenta triangles: HP1 (Barbuy et al. 2016), filled orange triangles: bulge field stars (Van der Swaelmen et al. 2016), filled green square: GCs from Pritzl et al. (2005), and filled gray triangles: Halo and disk stars (Fulbright 2000; François et al. 2007; Reddy et al. 2006; Barklem et al. 2005; Venn et al. 2004).
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