Dictionary of Opera New York: OUP: 1992 Werfel, Franz and Stefan, Paul (1973), Verdi: The Man and His Letters, New York, Vienna House. External links Giuseppe Sabbatini singing "Quando le sere al placido" from the 2004/2005 Teatro La Fenice production of Luisa Miller (official Teatro La Fenice YouTube channel) Libretto Aria database Operas based on works by Friedrich Schiller Operas by Giuseppe Verdi Italian-language operas 1849 operas Operas Operas set in Italy Fiction about suicide Opera world premieres at the Teatro San Carlo Operas based on plays