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Levan, AJ, Lamb, GP, Schneider, B, Hjorth, J, Zafar, T, de Ugarte Postigo, A, Sargent, B, Mullally, SE, Izzo, L, D’Avanzo, P, Burns, E, Fernández, JFA, Barclay, T, Bernardini, MG, Bhirombhakdim, K, Bremer, M, Brivio, R, Campana, S, Chrimes, AA, D’Elia, V et al, Valle, MD, De Pasquale, M, Ferro, M, Fong, W, Fruchter, AS, Fynbo, JPU, Gaspari, N, Gompertz, BP, Hartmann, DH, Hedges, CL, Heintz, KE, Hotokezaka, K, Jakobsson, P, Kann, DA, Kennea, JA, Laskar, T, Le Floc’h, E, Malesani, DB, Melandri, A, Metzger, BD, Oates, SR, Pian, E, Piranomonte, S, Pugliese, G, Racusin, JL, Rastinejad, JC, Ravasio, ME, Rossi, A, Saccardi, A, Salvaterra, R, Sbarufatti, B, Starling, RLC, Tanvir, NR, Thöne, CC, van der Horst, AJ, Vergani, SD, Watson, D, Wiersema, K, Wijers, RAMJ and Xu, D (2023) The First JWST Spectrum of a GRB Afterglow: No Bright Supernova in Observations of the Brightest GRB of all Time, GRB 221009A. The Astrophysical Journal Letters, 946 (1). ISSN 2041-8205