STEFFES, D. W. . FRONT PAGE NEWS (Includes a Summary of Energy Cost Increases Between 1999 and 2000). Strategic Planning for Energy and the Environment, [S. l.], v. 20, n. 2, p. 31–34, 2023. Disponível em: https://journals.riverpublishers.com/index.php/SPEE/article/view/20489. Acesso em: 28 apr. 2026.