SMITH, Paul H. Imminent: Inside the Pentagon’s Hunt for UFOs. Journal of Scientific Exploration, [S. l.], v. 39, n. 3, p. 379–381, 2025. DOI: 10.31275/20253795. Disponível em: https://journalofscientificexploration.org/index.php/jse/article/view/3795. Acesso em: 24 apr. 2026.