WAGNER, Hans-Joachim. Susan Vadiver Nicassio: Tosca’s Rome. The Play and the opera in historical perspective. Die Musikforschung, [S. l.], v. 56, n. 2, p. 211–212, 2003. DOI: 10.52412/mf.2003.H2.4932. Disponível em: https://mf.journals.qucosa.de/mf/article/view/4932. Acesso em: 19 apr. 2025.