BALSTRØM, T. Thematic mapping from satellite imagery, a guide book / Cartographie thématique dérivée des images satellitaires, un guide. Geografisk Tidsskrift, [S. l.], v. 97, 1997. Disponível em: https://tidsskrift.dk/geografisktidsskrift/article/view/42103. Acesso em: 3 maj. 2024.