Ruiz de Gauna Gorostiza, JosuSarasua Fernández, José Mari2026-03-052014-04-039788498609189https://pepa.une.es/handle/123456789/71415Con posibilidad de lectura sin conexiónp. 761.20 MBCreative Commons Attribution 4.0 International (CC BY 4.0)http://creativecommons.org/licenses/by/4.0/Material educativoopenAccess