References for the numbering systems

Col	Reference

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

R1 van Zeipel H., Lindgren J. 1921, Kungl. Sv. Vetensk. Handlingar 61 no

R2 Nordlund J.O. 1909, Arkiv. Mat. Fis. 5 no 17

R3 Giebeler H. 1914, Veroeff. Univ. Sternw. Bonn no 12

R4 Hoag A.A., et al. 1961, Publ. US. Nav. Obs. 17, 347

R5 Joy A.H. 1915, Astron. J. 29, 101

R6 Meurers J. 1960, Veroeff. Univ. Sternw. Bonn no 53

R7 Brosterhus E. 1963, Astr. Abh. Hamburg. Sternw. VII no 2

R8 Upgren A.R. 1966, Astron. J. 71, 736

R9 Zug R.S. 1933, Lick Obs. Bull. 16, 119

R10 Bronnikova N.M. 1958, Trudy Glavn. Astr. Obs. Pulkove 72, 77

R11 Robin A. 1982, Astron. Astrophys. Suppl. 50, 251

R12 Kiss L.L., et al. 2001, Astron. Astrophys. 376, 561

R13 Nilakshi, Sagar R. 2002, Astron. Astrophys. 381, 65

R14 Kalirai J.S., et al. 2001, Astron. J. 122, 3239

R15 Paunzen E., Pintado O.I., Maitzen H.M. 2003, Astron. Astrophys. 412, 721

R16 West F.R. 1967, Astrophys. J. Suppl. XIV no 132

R17 Hartman J.D., et al. 2008, Astrophys. J. 675, 1233


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