@Misc{BVMC:224269, author = {Espinosa, Urbano}, title = {Los castros soriano-riojanos del Sistema Ibérico : nuevas perspectivas}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2004}, year = {2004}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcrr268} }