Douglass, Nathaniel A. K., and Carolyn S. Fish. “That’s a Relief: Assessing Beauty, Realism, and Landform Clarity in Multilayer Terrain Maps”. Cartographic Perspectives, no. 100 (August 2, 2022): 45–66. Accessed January 31, 2023. https://cartographicperspectives.org/index.php/journal/article/view/1727.