Col Reference --- --------- R1 Claria J.J. 1976, Astron. J. 81, 155 R2 Delgado A.J. et al. 2007, Astron. Astrophys. 467, 1397 Back to the form
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R1 Claria J.J. 1976, Astron. J. 81, 155
R2 Delgado A.J. et al. 2007, Astron. Astrophys. 467, 1397