Cardoso, João Luís, et al. “Lithic Instruments for the Plastic Deformation of Metals from the Chalcolithic Settlement of Outeiro Redondo (Sesimbra)”. Estudos Arqueológicos De Oeiras, vol. 24, June 2018, pp. 291-06, https://eao.oeiras.pt/index.php/DOC/article/view/315.