KONRAD, Ulrich. The Kurt Weill Edition: Series I – Stage. Volume 18: The Firebrand of Florence. Broadway Operetta in Two Acts. Die Musikforschung, [S. l.], v. 60, n. 4, p. 428–430, 2007. DOI: 10.52412/mf.2007.H4.4497. Disponível em: https://mf.journals.qucosa.de/mf/article/view/4497. Acesso em: 22 mai. 2025.