He worked in analysis, synthesis and reviews of romance medieval literature (Italian, Provencal, French, Spanish, Portuguese), with particular emphasis on poetry and its formal structures.
He also wrote essays on William IX of Aquitaine, Jaufre Rudel, Arnaut Daniel, Thibaut de Champagne, Alfonso X, Iacopone da Todi, Dante Alighieri, Francesco Petrarca, Luigi Pirandello.
He is interested in relationship among latin and romance versification and the reception of troubadour lyrics in the Middle Ages, in the Renaissance and in the contemporary.
In 1998 the digital critical editions of two Galician-Portuguese troubadours, Martin Codax and Pero Meogo, were among the first published on the net.
Repertorio metrico unificato della lirica medievale romanza (metrical repertory of medieval romance lyric); 4.