Keith T. Johns Franz Liszt's N6 Sketchbook held at the Goethe-Schiller Archiv in Weimar in: JALS, Bd. 20, 1986, S. 30–33
Keith T. Johns Malédiction. The concerto's history, programme and some notes on harmonic organizations in: JALS, Bd. 18, 1985, S. 29–35
Keith T. Johns De Profundis. Psalm instrumental, an abandoned concerto for piano and orchestra by Franz Liszt in: JALS, Bd. 15, 1984, S. 96–104