https://arxiv.org/abs/astro-ph/0308185
[astro-ph/0308185] Identification of Type Ia Supernovae at Redshift 1.3 and Beyond with the...
Abstract page for arXiv paper astro-ph/0308185: Identification of Type Ia Supernovae at Redshift 1.3 and Beyond with the Advanced Camera for Surveys on HST