Common stock returns of us air transport companies before and after the september 11th terrorist attacks . REGE Revista de Gestão, [S. l.], v. 15, n. 2, p. 53–64, 2008. DOI: 10.5700/issn.2177-8736.rege.2008.36637. Disponível em: https://revistas.usp.br/rege/article/view/36637.. Acesso em: 27 apr. 2024.