Zenck, Martin (2001): Classicism versus the „New German School“. About the political codes „Conservative“ - „Progressive“ in the music of the second half of the 19th century. (Lecture during the Tenth International Conference on 19th- century Music. Department of Music, University of Bristol, 16 -19 July 1998), in: Peter Niedermüller (Hrsg.), Quellenstudium und musikalische Analyse : Festschrift Martin Just zum 70. Geburtstag, Würzburg.