MATTKE, R.; KUBAS, A. Engraved in Copper: The Art of Mapping Minnesota. Cartographic Perspectives, [S. l.], n. 86, p. 24–29, 2017. DOI: 10.14714/CP86.1409. Disponível em: https://cartographicperspectives.org/index.php/journal/article/view/cp86-mattke-kubas. Acesso em: 7 may. 2024.