SAUNDERS, William; HAAS, George; MILLER, James; MORGAN, Keith; DALE, Michael. The Badlands Guardian: A Human Portrait with Feathered Headdress. Journal of Scientific Exploration, [S. l.], v. 36, n. 1, p. 69–82, 2022. DOI: 10.31275/20222423. Disponível em: https://journalofscientificexploration.org/index.php/jse/article/view/2423. Acesso em: 28 apr. 2026.