VIBERG, A.; LARSON, M. Mobile laser scanning and 360° photography for the documentation of the Iron Age ring fort at Gråborg, Öland, Sweden. Archaeologia Polona, [S. l.], v. 53, p. 396–399, 2015. Disponível em: https://journals.iaepan.pl/apolona/article/view/359. Acesso em: 2 may. 2024.