KLEIN, Joanne. Seeing Double: Theatrical Conceits in Cloud Nine. Journal of Dramatic Theory and Criticism, [S. l.], v. 1, n. 2, p. 63–72, 1987. DOI: 10.17161/jdtc.v1i2.1653. Disponível em: https://journals.ku.edu/jdtc/article/view/1653.. Acesso em: 1 may. 2024.