P. Migoń, V. Vandelli, P. Coratza, A. Hilario, and M. Soldati, “Rock-controlled coastal landforms in the flysch-dominated Basque Coast UNESCO Global Geopark”, Geog. Fis. Dinam. Quat., vol. 48, no. 1-2, pp. 7–24, Sep. 2025, doi: 10.4454/bhk456vf.