H. E. Bond; E. P. Nelan; D. A. VandenBerg; G. H. Schaefer; D. Harmer (2013). HD 140283: A Star in the Solar Neighborhood that Formed Shortly After the Big Bang. The Astrophysical Journal Letters. 765 (1): L12. arXiv:1302.3180. Bibcode:2013ApJ...765L..12B. doi:10.1088/2041-8205/765/1/L12.
H. E. Bond; E. P. Nelan; D. A. VandenBerg; G. H. Schaefer; D. Harmer (2013). HD 140283: A Star in the Solar Neighborhood that Formed Shortly After the Big Bang. The Astrophysical Journal Letters. 765 (1): L12. arXiv:1302.3180. Bibcode:2013ApJ...765L..12B. doi:10.1088/2041-8205/765/1/L12.
H. E. Bond; E. P. Nelan; D. A. VandenBerg; G. H. Schaefer; D. Harmer (2013). HD 140283: A Star in the Solar Neighborhood that Formed Shortly After the Big Bang. The Astrophysical Journal Letters. 765 (1): L12. arXiv:1302.3180. Bibcode:2013ApJ...765L..12B. doi:10.1088/2041-8205/765/1/L12.