References for the numbering systems

Col	Reference

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

R1	Landolt A.J. 1964, Astrophys. J. 8, 329  (table 1)

R2	King D.S. 1982, Sydney Obs. papers no 93

R3	Pedreros M. 1984, Thesis

R4	Gould B. 1899, Cordoba Resultados vol. 19

R5	Sagar R., Cannon R.D. 1997, Astron. Astrophys. Suppl. 122, 9 (part a)

R6	Sagar R., Cannon R.D. 1997, Astron. Astrophys. Suppl. 122, 9 (part b)

R7	

R8	

R9	

R10	

R11	

R12	

R13	

R14	Landolt A.J. 1964, Astrophys. J. 8, 329  (table 6)

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