Col Reference --- --------- R1 Arp H.C. 1958, Astrophys. J. 128, 166 R2 McSwain M.V., Gies D.R., 2005, ApJS 161, 118 Back to the form
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R1 Arp H.C. 1958, Astrophys. J. 128, 166
R2 McSwain M.V., Gies D.R., 2005, ApJS 161, 118