Upper limits on atmospheric abundances of KELT-11b and WASP-69b from a retrieval approach. - Lesjak, F.; Nortmann, L.; Cont, D.; Amado, P. J.; Azzaro, M.; Caballero, J. A.; Czesla, S.; Hatzes, A.; Henning, Th.; López-Puertas, M.; Molaverdikhani, K.; Montes, D.; et al. (Astronomy & Astrophysics / Astronomie et Astrophysique, 2025)