Col Reference --- --------- R1 Steppe H. 1977, Astron. Astrophys. Suppl. 27, 415 R2 Cheon S., et al. 2010, J. Korean Astron. Soc. 43, 115 Back to the form
--- ---------
R1 Steppe H. 1977, Astron. Astrophys. Suppl. 27, 415
R2 Cheon S., et al. 2010, J. Korean Astron. Soc. 43, 115