GREENWOOD, Barry. Skinwalkers at the Pentagon. Journal of Scientific Exploration, [S. l.], v. 37, n. 1, p. 127–131, 2023. DOI: 10.31275/20232857. Disponível em: https://journalofscientificexploration.org/index.php/jse/article/view/2857. Acesso em: 27 apr. 2026.