Tuomi, M.; et al. (janeiro de 2013). «Habitable-zone super-Earth candidate in a six-planet system around the K2.5V star HD 40307». Astronomy & Astrophysics. 549. pp. A48, 23. Bibcode:2013A&A...549A..48T. doi:10.1051/0004-6361/201220268
Mayor, M.; et al. (janeiro de 2009). «The HARPS search for southern extra-solar planets. XIII. A planetary system with 3 super-Earths (4.2, 6.9, and 9.2 M⊕)». Astronomy and Astrophysics. 493 (2). pp. 639–644. Bibcode:2009A&A...493..639M. doi:10.1051/0004-6361:200810451
Barnes, Rory; Jackson, Brian; Raymond, Sean N.; West, Andrew A.; Greenberg, Richard (abril de 2009). «The HD 40307 Planetary System: Super-Earths or Mini-Neptunes?». The Astrophysical Journal. 695 (5). pp. 1006–1011. Bibcode:2009ApJ...695.1006B. doi:10.1088/0004-637X/695/2/1006
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Tuomi, M.; et al. (janeiro de 2013). «Habitable-zone super-Earth candidate in a six-planet system around the K2.5V star HD 40307». Astronomy & Astrophysics. 549. pp. A48, 23. Bibcode:2013A&A...549A..48T. doi:10.1051/0004-6361/201220268
Mayor, M.; et al. (janeiro de 2009). «The HARPS search for southern extra-solar planets. XIII. A planetary system with 3 super-Earths (4.2, 6.9, and 9.2 M⊕)». Astronomy and Astrophysics. 493 (2). pp. 639–644. Bibcode:2009A&A...493..639M. doi:10.1051/0004-6361:200810451
Barnes, Rory; Jackson, Brian; Raymond, Sean N.; West, Andrew A.; Greenberg, Richard (abril de 2009). «The HD 40307 Planetary System: Super-Earths or Mini-Neptunes?». The Astrophysical Journal. 695 (5). pp. 1006–1011. Bibcode:2009ApJ...695.1006B. doi:10.1088/0004-637X/695/2/1006
