John C. Tibbetts Liszt: A life on Screen in: Liszt's Legacies, herausgegeben von James Deaville, Michael Saffle, New York 2014, S. 313–335
John C. Tibbetts The Truth in Masquerade. Images of Franz Liszt in the Movies in: Liszt the Progressive, herausgegeben von Hans und Lagerfelt Johan Kagebeck, Lewiston NY 2001, S. 209–222
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