Linda W. Claus An Aspect of Liszt's Late Style. The Composer's Revisions for Historische, Ungarische Portraits in: JALS, Bd. 3, 1978, S. 3–18
Reginald R. Gerig The Role of the Arm in Historical Piano Technical Thought in: JALS, Bd. 2, 1977, S. 11–23