Col Reference --- --------- R1 Carraro G., Patat F. 1995, MNRAS 276, 563 R2 Turner D.G. 1983, Jour. R. Astr. Soc. Canada 77,31 R3 Piatti A.E., et al. 2004, Astron. Astrophys. 421, 991 Back to the form
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R1 Carraro G., Patat F. 1995, MNRAS 276, 563
R2 Turner D.G. 1983, Jour. R. Astr. Soc. Canada 77,31
R3 Piatti A.E., et al. 2004, Astron. Astrophys. 421, 991