"La clemenza di Tito" and other two-act reductions of the late 18th century. . In: Bericht über den Internationalen Mozart-Kongreß, Salzburg 1991. Jg.1991, S.733741
 

Bericht über den Internationalen Mozart-Kongreß, Salzburg 19912"La clemenza di Tito" and other two-act reductions of the late 18th century