Late prehistoric fortifications in Europe : defense, symbolic and territorial aspects from the Chalcolithic to the Iron Age : proceedings of the International Colloquium 'FortMetalAges', Guimarães, Portugal - Delfino, Davide, 1976-; Coimbra, Fernando Augusto; Cruz, Gonçalo P. Correia da; Cardoso, Daniela (Archaeopress Archaeology, 2020)