Col Reference --- --------- R1 Glushkova E.V. et al. 2010, Astron. Lett. 36, 14 R2 Bica E. et al. 2006, Astron. Astrophys. 460, 89 Back to the form
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R1 Glushkova E.V. et al. 2010, Astron. Lett. 36, 14
R2 Bica E. et al. 2006, Astron. Astrophys. 460, 89