HANNUM, C. Effect of Natural Gas Prices on Renewable Portfolio Standard Impacts. International Journal of Energy Economics and Policy, [S. l.], v. 13, n. 2, p. 391–403, 2023. DOI: 10.32479/ijeep.13741. Disponível em: https://www.econjournals.com/index.php/ijeep/article/view/13741. Acesso em: 2 may. 2024.