STEFFES, D. . The Twentieth CenturyThe Age of Energy . Strategic Planning for Energy and the Environment, [S. l.], v. 17, n. 3, p. 6–7, 2023. Disponível em: https://journals.riverpublishers.com/index.php/SPEE/article/view/20667. Acesso em: 28 apr. 2026.