PATTERSON, T. A Desktop Approach to Shaded Relief Production. Cartographic Perspectives, [S. l.], n. 28, p. 38–39, 1997. DOI: 10.14714/CP28.694. Disponível em: https://cartographicperspectives.org/index.php/journal/article/view/cp28-patterson. Acesso em: 29 mar. 2024.