The Viking Opera Guide edited by Amanda Holden.

The Standard Opera Guide.

Article in The Viking Opera Guide ed.

The Opera Guide (with Stanley Sadie), Hamish Hamilton, 1964.

Graham Dixon, "Luigi Rossi" in The Viking Opera Guide ed.

Article by David Charlton in The Viking Opera Guide ed.

The Viking Opera Guide ed.

David Charlton, section on Méhul in The Viking Opera Guide ed.

The Opera Guide has the libretto in German and English translation as well as a synopsis.

The New Penguin Opera Guide.