{Afterglow Upper Limits for Four Short-Duration, Hard Spectrum Gamma-Ray Bursts}
Publication information:
{Hurley}, {Berger}, {Castro-Tirado}, {Castro Cerón}, {Cline}, {Feroci}, {Frail}, {Frontera}, {Masetti}, {Guidorzi}, et al. {Afterglow Upper Limits for Four Short-Duration, Hard Spectrum Gamma-Ray Bursts}. \apj. 2002;567:447–453. doi:10.1086/338420