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Reffert, S.; Quirrenbach, A. Mass constraints on substellar companion candidates from the re-reduced Hipparcos intermediate astrometric data: nine confirmed planets and two confirmed brown dwarfs. Astronomy & Astrophysics. 2011, 527. id.A140. Bibcode:2011A&A...527A.140R. arXiv:1101.2227. doi:10.1051/0004-6361/201015861.
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Valenti, Jeff A.; Fischer, Debra A. Spectroscopic Properties of Cool Stars (SPOCS). I. 1040 F, G, and K Dwarfs from Keck, Lick, and AAT Planet Search Programs. The Astrophysical Journal Supplement Series. July 2005, 159 (1): 141–166. Bibcode:2005ApJS..159..141V. doi:10.1086/430500.
Reffert, S.; Quirrenbach, A. Mass constraints on substellar companion candidates from the re-reduced Hipparcos intermediate astrometric data: nine confirmed planets and two confirmed brown dwarfs. Astronomy & Astrophysics. 2011, 527. id.A140. Bibcode:2011A&A...527A.140R. arXiv:1101.2227. doi:10.1051/0004-6361/201015861.