Ulyate, Ryan, Bianciardi, David (2002). The Interactive Dance Club: Avoiding Chaos in a Multi-Participant Environment. Computer Music Journal: Vol. 26, no. 3. Cambridge, MA: MIT Press: 40-49.
Also published in: Proceedings of the 2001 Conference on New Interfaces for Musical Expression (NIME-01). Seattle, WA.
Umezaki, Kojiro (1992). The Future Role of Japanese Musicians and Composers in Music Technology. In Proceedings of the 1992 International Computer Music Conference - San Jose. San Francisco, CA: ICMA: 486-488.
Ungeheuer, Elena (1994). From the Elements to the Continuum: Timbre Composition in Early Electronic Music. Contemporary Music Review. Vol. 10, No. 2: London: Harwood: 25-33.
Ungeheuer, Elena, Decroupet, Pascal (1998). Through the Sensory Looking-glass: the Aesthetic and Serial Foundations of Gesang des Jünglinge. Perspectives of New Music, Vol. 36, No 1. Princeton: Princeton University Press: 97-142.
UNGEHEUER, G. (1960). Ähnlichkeitsklassen bei Schallsignalen (Similarity Classes of Sound Signals). Gravesaner Blätter. No. 19/20: Mainz: Ars Viva Verlag: 151-157/158-162.