Greiner, J., Krühler, T., Nardini, M., Filgas, R., Moin, A., de Breuck, C., et al. (2013). The unusual afterglow of the gamma-ray burst 100621A. Astronomy & Astrophysics, 560: A70, pp. 1-14. doi:10.1051/0004-6361/201321284.