Drought as a possible contributor to the Visigothic Kingdom crisis and Islamic expansion in the Iberian Peninsula - Camuera, Jon; Jiménez-Espejo, Francisco J.; Soto-Chica, José; Jiménez-Moreno, Gonzalo; García-Alix, Antonio; Ramos-Román, María J.; Ruha, Leena; Castro-Priego, Manuel (Springer Science and Business Media LLC, 2023)