CHEN, Hanjun. Performance Comparison of Cool, Green, and Black Envelopes in the United States. Transactions on Engineering and Technology Research, [S. l.], v. 4, p. 30–42, 2024. DOI: 10.62051/ynczwj59. Disponível em: https://wepub.org/index.php/TETR/article/view/4211. Acesso em: 18 apr. 2026.