MCGRATH, K. J. Hillshading with Illuminated Contours. Cartographic Perspectives, [S. l.], n. 64, p. 62–63, 2009. DOI: 10.14714/CP64.151. Disponível em: https://cartographicperspectives.org/index.php/journal/article/view/cp64-mcgrath. Acesso em: 4 may. 2024.