The triple-peaked afterglow of GRB 210731A from X-ray to radio frequencies S. de Wet, T. Laskar, P. J. Groot, F. Cavallaro, A. Nicuesa Guelbenzu, S. Chastain, L. Izzo, A. Levan, D. B. Malesani, I. M. Monageng et al. (11 more) A&A, 671 (2023) A116 Published online: 13 March 2023 DOI: 10.1051/0004-6361/202244917