Col Reference --- --------- R1 Lindoff U. 1971, Astron. Astrophys. 15, 439 R2 Alter G. 1943, Mon. Not. R. Astr. Soc. 103, 10 R3 Gould B.A. 1897, Cordoba Photographs , amas XXXV R4 McSwain M.V., Gies D.R., 2005, ApJS 161, 118 Back to the form
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R1 Lindoff U. 1971, Astron. Astrophys. 15, 439
R2 Alter G. 1943, Mon. Not. R. Astr. Soc. 103, 10
R3 Gould B.A. 1897, Cordoba Photographs , amas XXXV
R4 McSwain M.V., Gies D.R., 2005, ApJS 161, 118