Ferraro, F. R.; Sabbi, E.; Gratton, R.; Piotto, G.; Lanzoni, B.; Carretta, E.; Rood, R. T.; Sills, A.; Fusi Pecci, F.; Moehler, S.; Beccari, G.; Lucatello, S.; Compagni, N. Discovery of Carbon/Oxygen-depleted Blue Straggler Stars in 47 Tucanae: The Chemical Signature of a Mass Transfer Formation Process. The Astrophysical Journal. 2006-08-10, 647 (1): L53–L56. Bibcode:2006ApJ...647L..53F. S2CID 119450832. arXiv:astro-ph/0610081. doi:10.1086/507327.
Leonard, Peter J. T. Stellar collisions in globular clusters and the blue straggler problem. The Astronomical Journal. 1989, 98: 217–226. Bibcode:1989AJ.....98..217L. doi:10.1086/115138.
Ferraro, F. R.; Sabbi, E.; Gratton, R.; Piotto, G.; Lanzoni, B.; Carretta, E.; Rood, R. T.; Sills, A.; Fusi Pecci, F.; Moehler, S.; Beccari, G.; Lucatello, S.; Compagni, N. Discovery of Carbon/Oxygen-depleted Blue Straggler Stars in 47 Tucanae: The Chemical Signature of a Mass Transfer Formation Process. The Astrophysical Journal. 2006-08-10, 647 (1): L53–L56. Bibcode:2006ApJ...647L..53F. S2CID 119450832. arXiv:astro-ph/0610081. doi:10.1086/507327.
Leonard, Peter J. T. Stellar collisions in globular clusters and the blue straggler problem. The Astronomical Journal. 1989, 98: 217–226. Bibcode:1989AJ.....98..217L. doi:10.1086/115138.
Ferraro, F. R.; Sabbi, E.; Gratton, R.; Piotto, G.; Lanzoni, B.; Carretta, E.; Rood, R. T.; Sills, A.; Fusi Pecci, F.; Moehler, S.; Beccari, G.; Lucatello, S.; Compagni, N. Discovery of Carbon/Oxygen-depleted Blue Straggler Stars in 47 Tucanae: The Chemical Signature of a Mass Transfer Formation Process. The Astrophysical Journal. 2006-08-10, 647 (1): L53–L56. Bibcode:2006ApJ...647L..53F. S2CID 119450832. arXiv:astro-ph/0610081. doi:10.1086/507327.
Ferraro, F. R.; Sabbi, E.; Gratton, R.; Piotto, G.; Lanzoni, B.; Carretta, E.; Rood, R. T.; Sills, A.; Fusi Pecci, F.; Moehler, S.; Beccari, G.; Lucatello, S.; Compagni, N. Discovery of Carbon/Oxygen-depleted Blue Straggler Stars in 47 Tucanae: The Chemical Signature of a Mass Transfer Formation Process. The Astrophysical Journal. 2006-08-10, 647 (1): L53–L56. Bibcode:2006ApJ...647L..53F. S2CID 119450832. arXiv:astro-ph/0610081. doi:10.1086/507327.