Fig. 10
[Zn/H] vs. [Fe/H] for the present sample (black filled triangles) and for the DLA samples by: (upper panel) Vladilo et al. (2011; open squares); (lower panel) Kulkarni et al. (2007; open squares), using a tranformation [Fe/H] vs. redshift from Pei & Fall (1995), and Cooke et al. (2013; green 3-pointed stars), Akerman et al. (2005; red four-pointed stars). A X = Y line is drawn.
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