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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