NEWCOMBE, G. M. Impossibility: A Viable Defense under the Clean Air Act?. Columbia Journal of Environmental Law, [S. l.], v. 1, n. 1, 2019. DOI: 10.7916/cjel.v1i1.4044. Disponível em: https://journals.library.columbia.edu/index.php/cjel/article/view/4044. Acesso em: 5 may. 2024.