1. Ligeti's Restoration of Interval and Its Significance for His Later Works
2. Corey , C. 2011 . “ Pitch and Harmony in György Ligeti'sHamburg Concerto” . Unpublished doctoral dissertation, Pittsburgh University .
3. Cuciurean , J.Bridging the stylistic divide: Correlating spatial voice-leading and harmonic design in Ligeti's middle- and late-period works. Manuscript submitted for publication. (An early version of this paper was presented at the annual meeting of the Society for Music Theory, Seattle, WA, November 2004.) .