Nickolas Cook Liszt's Second Thoughts. "Liebestraum" No. 2 and Its Relatives in: 19th Century Music, Bd. 12, 1988, S. 163–172
Andrew Bonner Liszt's "Les Préludes" and "Les Quatre Élémens". A Reinvestigation in: 19th Century Music, Bd. 10, 1986, S. 95–107