References for the numbering systems

Col	Reference

---	---------

R1	Phelps R.L., et al. 1994, Astron. J. 107, 1079

R2	Aparicio A., et al 1991, Astron. Astrophys. Suppl. 88, 155

R3	Kaluzny J. 1989, Acta Astr. 39, 13

R4	Tosi M., et al. 2007, Mon. Not. R. Astron. Soc. 378, 730

Back to the form