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
Masana, E.; Jordi, C.; Ribas, I (maio de 2006). «Effective temperature scale and bolometric corrections from 2MASS photometry». Astronomy and Astrophysics. 450 (2). pp. 735–746. Bibcode:2006A&A...450..735M. doi:10.1051/0004-6361:20054021
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
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
Masana, E.; Jordi, C.; Ribas, I (maio de 2006). «Effective temperature scale and bolometric corrections from 2MASS photometry». Astronomy and Astrophysics. 450 (2). pp. 735–746. Bibcode:2006A&A...450..735M. doi:10.1051/0004-6361:20054021
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