Christopher H. Gibbs Liszt on the road. The rise of the modern virtuoso pianist in: Liszt in context, herausgegeben von Joanne Cormac, Cambridge u.a. 2021, S. 185-192
Christopher H. Gibbs "Just Two Words. Enormous Success". Liszt’s 1838 Vienna Concerts in: Franz Liszt and his World, herausgegeben von Christopher H. Gibbs, Dana Gooley, Princeton, Oxford 2006, S. 167-230
Robert Stevenson Liszt's "Favorite" California Pupil. Hugo Mansfeldt (1844–1932). Part I in: JALS, Bd. 21, 1987, S. 42–58
Robert Stevenson Liszt's "Favorite" California Pupil. Hugo Mansfeldt (1844–1932). Part II in: JALS, Bd. 22, 1987, S. 27–45
Robert Stevenson Liszt in the Iberian Penisula in: Inter-American Music Review, Bd. 7, Frühling-Sommer 1986, S. 3–22
Robert Stevenson Liszt 's "Favorite" California Pupil. Hugo Mansfeldt (1844–1932) in: Inter-American Music Review, Bd. 7, 1986, S. 33–78
Robert Stevenson Liszt at Madrid and Lisbon: 1844–45 in: The Musical Quarterly, Bd. 65, 1979, S. 493–512