Inseok Song, J.-P. Caillault, David Barrado y Navascués, John R. Stauffer. Ages of A-Type Vega-like Stars from uvbyβ Photometry. „The Astrophysical Journal”. 546 (1), s. 352–357, luty 2001. DOI: 10.1086/318269. arXiv:astro-ph/0010102. Bibcode: 2001ApJ...546..352S. (ang.).
Inseok Song, J.-P. Caillault, David Barrado y Navascués, John R. Stauffer. Ages of A-Type Vega-like Stars from uvbyβ Photometry. „The Astrophysical Journal”. 546 (1), s. 352–357, luty 2001. DOI: 10.1086/318269. arXiv:astro-ph/0010102. Bibcode: 2001ApJ...546..352S. (ang.).
Inseok Song, J.-P. Caillault, David Barrado y Navascués, John R. Stauffer. Ages of A-Type Vega-like Stars from uvbyβ Photometry. „The Astrophysical Journal”. 546 (1), s. 352–357, luty 2001. DOI: 10.1086/318269. arXiv:astro-ph/0010102. Bibcode: 2001ApJ...546..352S. (ang.).