References for the numbering systems

Col	Reference

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R1 Park H.S. & Lee M.G. 1999, Mon. Not. R. Astron. Soc. 304, 883

R2 Maciejewski G. & Niedzielski A. 2007, Astron. Astrophys. 467, 1065

R3 Tapia M.T., et al. 2010, MNRAS 401, 621


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