ALTUNA, J.; MARIEZKURRENA, K. Rupestral painting in the superior gallery of Altxerri cave (Aia, Gipuzkoa). Zephyrvs, [S. l.], v. 65, p. 65–73, 2010. Disponível em: https://revistas.usal.es/uno/index.php/0514-7336/article/view/7172. Acesso em: 14 mar. 2025.