Rory Barnes, Richard Greenberg, Thomas R. Quinn, Barbara E. McArthur i inni. Origin and Dynamics of the Mutually Inclined Orbits of Upsilon Andromedae c and d. „Astrophysical Journal”. 726 (2), 2011. DOI: 10.1088/0004-637X/726/2/71. arXiv:1011.2216.
Barbara E. McArthur, et al.. New observational constraints on the υ Andromedae system with data from the Hubble Space Telescope and Hobby-Eberly Telescope. „Astrophysical Journal”. 715 (2). DOI: 10.1088/0004-637X/715/2/1203.
S. Curiel, J. Cantó, L. Georgiev, C.E. Chávez i inni. A fourth planet orbiting υ Andromedae. „Astronomy & Astrophysics”. 525, 2011. DOI: 10.1051/0004-6361/201015693.
Rory Barnes, Richard Greenberg, Thomas R. Quinn, Barbara E. McArthur i inni. Origin and Dynamics of the Mutually Inclined Orbits of Upsilon Andromedae c and d. „Astrophysical Journal”. 726 (2), 2011. DOI: 10.1088/0004-637X/726/2/71. arXiv:1011.2216.
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