- Carvalho, Carlos Neto De., et all. "Daedalus Mega-ichnosites: The Armorican Quartzite Bridge between Villuercas-Ibores-Jara and Naturtejo UNESCO Global Geoparks." Geoconservation Research (Geoconserv. Res.), vol. 4, no. 1, pp. 80-92, https://doi.org/10.30486/gcr.2021.1918476.1077