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Fig. B.2

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Colour versus EW of lithium line Li 6708 Å of the stars from our sample (gold stars) together with members of well-studied clusters: Tuc-Hor young moving group (~45 Myr; Mentuch et al. 2008), the Pleiades (~120 Myr; Soderblom et al. 1993b), M34 (~220 Myr; Jones et al. 1997), Ursa Major Group (~400 Myr; Soderblom et al. 1993c), Praesepe (~650 Myr; Soderblom et al. 1993a), Hyades (~650 Myr; Soderblom et al. 1990), and M67 clusters (~4 Gyr; Jones et al. 1999).

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