Jay Michael Rosenblatt Liszt's De Profundis and the Creation of a "musique nouvelle et humanitaire" in: Liszt-Jahrbuch, Bd. 1, 2016, S. 27–49
Leslie Howard Mario Angiolelli at the Guidhall School of Music and Drama in: Liszt Society Journal, Bd. 27, 2002, S. 86–87
Leslie Howard The Greatness of Franz Liszt: Leslie Howard Talks to Martin Anderson in: Fanfare, Bd. 23, November-December 1999, S. 62–81
Michael Short, Leslie Howard A New Liszt Catalogue in: Analecta Lisztiana I. Liszt and his world. Proceedings of the International Liszt Conference held at Virginia Polytechnic Institute and State University, 20-23 May 1993, herausgegeben von Michael Saffle, 1998, S. 75–100
Jay Michael Rosenblatt The Concerto as Crucible. Franz Liszt's Early Works for Piano and Orchestra Chicago 1995
Leslie Howard Obituary – Geoffrey Penwill Parsons, O. B. E., A. O. in: Liszt Society Journal, Bd. 20, 1995, S. 6
Leslie Howard Some Practical Performing Suggestions for the Third Concerto in: Liszt Society Journal, Bd. 18, 1993, S. 27–33