References for the numbering systems

Col	Reference

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R1 Lynga G. 1964, Medd. Lunds Astr. Obs. 2 no 139

R2 Moffat A.F.J., Vogt N. 1973, Astron. Astrophys. Suppl. 10, 135

R3 Vazquez R.A., et al. 1995, Astron. Astrophys. Suppl. 111, 85

R4 Sagar R., et al. 2001 Mon. Not. R. Astron. Soc. 327, 23

R5 Paunzen E., et al. 2002, Astron. Astrophys. 395, 823


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