Andrew Bonner Liszt's "Les Préludes" and "Les Quatre Élémens". A Reinvestigation in: 19th Century Music, Bd. 10, 1986, S. 95–107
Lajos Bárdos Ferenc Liszt, the Innovator in: Studia Musicologica Academiae Scientiarum Hungaricae, Bd. 17, 1975, S. 3–38