(en) B. W. Carney, « A photometric search for halo binaries. I - New observatinal data. II - Results », The Astronomical Journal, vol. 88, , p. 610 (DOI10.1086/113350).
(en) P. Bonifacio, M. Spite, R. Cayrel, V. Hill, F. Spite, P. François, B. Plez, H.-G. Ludwig, E. Caffau, P. Molaro, E. Depagne, J. Andersen, B. Barbuy, T. C. Beers, B. Nordström et F. Primas, « First stars XII. Abundances in extremely metal-poor turnoff stars, and comparison with the giants », Astronomy and Astrophysics, vol. 501, no 2, , p. 519–530 (ISSN0004-6361, DOI10.1051/0004-6361/200810610).
(en) John J. Cowan, Christopher Sneden, Scott Burles, Inese I. Ivans, Timothy C. Beers, James W. Truran, James E. Lawler, Francesca Primas, George M. Fuller, Bernd Pfeiffer et Karl‐Ludwig Kratz, « The Chemical Composition and Age of the Metal‐poor Halo Star BD +17o3248 », The Astrophysical Journal, vol. 572, no 2, , p. 861–879 (ISSN0004-637X, DOI10.1086/340347).
(en) Debra L. Burris, Catherine A. Pilachowski, Taft E. Armandroff, Christopher Sneden, John J. Cowan et Henry Roe, « Neutron‐Capture Elements in the Early Galaxy: Insights from a Large Sample of Metal‐poor Giants », The Astrophysical Journal, vol. 544, no 1, , p. 302–319 (ISSN0004-637X, DOI10.1086/317172).
(en) P. Bonifacio, M. Spite, R. Cayrel, V. Hill, F. Spite, P. François, B. Plez, H.-G. Ludwig, E. Caffau, P. Molaro, E. Depagne, J. Andersen, B. Barbuy, T. C. Beers, B. Nordström et F. Primas, « First stars XII. Abundances in extremely metal-poor turnoff stars, and comparison with the giants », Astronomy and Astrophysics, vol. 501, no 2, , p. 519–530 (ISSN0004-6361, DOI10.1051/0004-6361/200810610).
(en) John J. Cowan, Christopher Sneden, Scott Burles, Inese I. Ivans, Timothy C. Beers, James W. Truran, James E. Lawler, Francesca Primas, George M. Fuller, Bernd Pfeiffer et Karl‐Ludwig Kratz, « The Chemical Composition and Age of the Metal‐poor Halo Star BD +17o3248 », The Astrophysical Journal, vol. 572, no 2, , p. 861–879 (ISSN0004-637X, DOI10.1086/340347).
(en) Debra L. Burris, Catherine A. Pilachowski, Taft E. Armandroff, Christopher Sneden, John J. Cowan et Henry Roe, « Neutron‐Capture Elements in the Early Galaxy: Insights from a Large Sample of Metal‐poor Giants », The Astrophysical Journal, vol. 544, no 1, , p. 302–319 (ISSN0004-637X, DOI10.1086/317172).