Table 1: The authors from which we adopt the observational data for each considered element.
  Eu Ba La Sr Y Zr Ca Mg Si
Burris et al. (2000) X X   X X X      
Carney et al. (1997)             X X X
Carretta et al. (2002)             X X X
Cayrel et al. (2004)             X X X
Cowan et al. (2005) X   X     X      
Edvardsson et al. (1993)   X     X X X X X
François et al. (2007) X X X X X X      
Fulbright (2000) X X     X X X X X
Fulbright (2002) X X     X X X X X
Gilroy et al. (1998) X X X X X X      
Gratton & Sneden (1988)   X   X X        
Gratton & Sneden (1994) X X X X X X      
Honda et al. (2004) X X X X X X X X X
Ishimaru et al. (2004) X X   X          
Johnson (2002) X X X X X X X X X
Koch & Edvardsson (2002) X                
Mashonkina & Gehren (2000, 2001) X X   X          
McWilliam et al. (1995) X X X X X X X X X
McWilliam & Rich (1994) X X X   X X X X X
Nissen & Schuster (1997)   X     X        
Pompeia et al. (2003)     X            
Prochaska et al. (2000) X X     X   X X X
Ryan et al. (1991) X X   X X   X X X
Ryan et al. (1996) X X   X X X X X X
Stephens (1999)   X     X   X X X
Stephens & Boesgaard (2002)   X     X   X X X

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