Drought as a possible contributor to the Visigothic Kingdom crisis and Islamic expansion in the Iberian Peninsula - Camuera, J.; Jiménez-Espejo, F.J.; Soto-Chica, J.; Jiménez-Moreno, G.; García-Alix, A.; Ramos-Román, M.J.; Ruha, L.; Castro-Priego, M. (Nature Communications, 2023)