Miriam Cabré, "Italian and Catalan troubadours," in The Troubadours: An Introduction. Cambridge: CUP, 1999,
127-140.
Flavio Catenazzi, L'influsso dei provenzali sui temi e immagini della poesia siculo-toscana (Brescia: Morcelliana, 1977).
Hans-Erich Keller, "Italian Troubadours," in A Handbook of the Troubadours, eds. F.R.P. Akehurst and Judith M. Davis (Berkeley: University of California Press, 1995), 295-304.