Porto de Mello, G. F.; da Silva, R.; da Silva, L.; de Nader, R. V. A photometric and spectroscopic survey of solar twin stars within 50 parsecs of the Sun; I. Atmospheric parameters and color similarity to the Sun. Astronomy and Astrophysics. March 2014, 563: A52. Bibcode:2014A&A...563A..52P. arXiv:1312.7571. doi:10.1051/0004-6361/201322277.
Porto de Mello, G. F.; da Silva, R.; da Silva, L.; de Nader, R. V. A photometric and spectroscopic survey of solar twin stars within 50 parsecs of the Sun; I. Atmospheric parameters and color similarity to the Sun. Astronomy and Astrophysics. March 2014, 563: A52. Bibcode:2014A&A...563A..52P. arXiv:1312.7571. doi:10.1051/0004-6361/201322277.
Porto de Mello, G. F.; da Silva, R.; da Silva, L.; de Nader, R. V. A photometric and spectroscopic survey of solar twin stars within 50 parsecs of the Sun; I. Atmospheric parameters and color similarity to the Sun. Astronomy and Astrophysics. March 2014, 563: A52. Bibcode:2014A&A...563A..52P. arXiv:1312.7571. doi:10.1051/0004-6361/201322277.