Col Reference --- --------- R1 MacMinn D. et al. 1994, Astron. J. 107, 1806 R2 Durgapal A.K., Pandey A.K., Mohan V., 2001, Astron. Astrophys. 372, 71 Back to the form
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R1 MacMinn D. et al. 1994, Astron. J. 107, 1806
R2 Durgapal A.K., Pandey A.K., Mohan V., 2001, Astron. Astrophys. 372, 71