HERNANDO ÁLVAREZ, C. BALBÍN BERHRMANN, Rodrigo… [et al.]. «Grabados rupestres de la fachada atlántica europea y africana = Rock Carvings or the European and the African Atlantic Façade». Oxford: Archaeopress, 2009. Zephyrvs, [S. l.], v. 67, p. 211–213, 2011. Disponível em: https://revistas.usal.es/index.php/0514-7336/article/view/8385. Acesso em: 19 may. 2022.