Greiner, J. High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;
Gorosabel, J., Rol, E., Covino, S., Castro-Tirado, A. J., Castro Cerón, J. M., Lazzati, D., et al. (2004). GRB 020813: Polarization in the case of a smooth optical decay. Astronomy & Astrophysics, 422(1), 113-119. doi:10.1051/0004-6361:20034409.