HEIKKINEN, O.; TIKKANEN, M. The Kalajoki dune field on the west coast of Finland. Fennia - International Journal of Geography, [S. l.], v. 165, n. 2, p. 241–267, 1987. Disponível em: https://fennia.journal.fi/article/view/9048. Acesso em: 8 may. 2024.