Charles (1994), The Bel Canto Operas of Rossini, Donizetti, and Bellini, London: Methuen; Portland, Oregon: Amadeus Press. Further reading Gossett, Philip; Brauner, Patricia (2001), "Torvaldo e Dorliska" in Holden, Amanda (ed.), The New Penguin Opera Guide, New York: Penguin Putnam. Osborne, Richard (1990), Rossini, Ithaca, New York: Northeastern University Press. Osborne, Richard (1998), "Torvaldo e Dorliska", in Stanley Sadie (Ed.), The New Grove Dictionary of Opera, Vol. xxxx. London: Macmillan Publishers, Inc. External links Italian libretto at rossinigesellschaft.de Operas by Gioachino Rossini Italian-language operas Operas based on novels Operas Opera semiseria Rescue operas 1815 operas