Hatzes, A. P.; Cochran, W. D.; Endl, M.; Guenther, E. W.; Saar, S. H.; Walker, G. A. H.; Yang, S.; Hartmann, M.; et al. (2006), ”Confirmation of the planet hypothesis for the long-period radial velocity variations of β Geminorum”, Astronomy and Astrophysics 457: 335–341, doi:10.1051/0004-6361:20065445, Bibcode: 2006A&A...457..335H
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Hatzes, A. P.; Cochran, W. D.; Endl, M.; Guenther, E. W.; Saar, S. H.; Walker, G. A. H.; Yang, S.; Hartmann, M.; et al. (2006), ”Confirmation of the planet hypothesis for the long-period radial velocity variations of β Geminorum”, Astronomy and Astrophysics 457: 335–341, doi:10.1051/0004-6361:20065445, Bibcode: 2006A&A...457..335H
