{GRB{\nbsp}091024A and the Nature of Ultra-long Gamma-Ray Bursts}
Publication information:
{Virgili}, {Mundell}, {Pal’shin}, {Guidorzi}, {Margutti}, {Melandri}, {Harrison}, {Kobayashi}, {Chornock}, {Henden}, et al. {GRB{\nbsp}091024A and the Nature of Ultra-long Gamma-Ray Bursts}. \apj. 2013;778:54. doi:10.1088/0004-637X/778/1/54