David Carrson Berry The Meaning(s) of "without". An Exploration of Liszt's Bagatelle ohne Tonart in: 19th Century Music, Bd. 27, 2004, S. 230–262
R. Larry Todd The "Unwelcome Guest" Regaled. Franz Liszt and the Augmented Triad in: 19th Century Music, Bd. 12, 1989, S. 93–115
R. Larry Todd Liszt, Fantasy and Fuge for Organ on "Ad nos, ad salutarem undam" in: 19th Century Music, Bd. 4, 1981, S. 250–261