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
Richard Kaplan Sonata Form in the Orchestral Works of Liszt. The Revolutionary Reconsidered in: 19th Century Music, Bd. 8, 1984, S. 142–152