Energy Recovery from Solid Waste Materials via a Two-step Gasification Process by Steam. European Journal of Energy Research, [S. l.], v. 2, n. 2, p. 20–24, 2022. DOI: 10.24018/ejenergy.2022.2.2.51. Disponível em: https://ej-energy.org/index.php/ejenergy/article/view/51. Acesso em: 20 oct. 2025.