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Ligi, R.; Mourard, D.; Lagrange, A. M. et al. (2012). “A new interferometric study of four exoplanet host stars : θ Cygni, 14 Andromedae, υ Andromedae and 42 Draconi”. Astronomy and Astrophysics545: A5. arXiv:1208.3895. Bibcode: 2012A&A...545A...5L. doi:10.1051/0004-6361/201219467.
Ligi, R.; Mourard, D.; Lagrange, A. M. et al. (2012). “A new interferometric study of four exoplanet host stars : θ Cygni, 14 Andromedae, υ Andromedae and 42 Draconi”. Astronomy and Astrophysics545: A5. arXiv:1208.3895. Bibcode: 2012A&A...545A...5L. doi:10.1051/0004-6361/201219467.
Ligi, R.; Mourard, D.; Lagrange, A. M. et al. (2012). “A new interferometric study of four exoplanet host stars : θ Cygni, 14 Andromedae, υ Andromedae and 42 Draconi”. Astronomy and Astrophysics545: A5. arXiv:1208.3895. Bibcode: 2012A&A...545A...5L. doi:10.1051/0004-6361/201219467.