1. Apenburg, E. (1986) Befindlichkeitsbeschreibung als Methode der Beanspruchungsmessung. Zeitschrift für Arbeits-und Organisationspsychologie 30(N.F. 4): 3–14.
2. Buxton, W. (1989) Introduction to this special issue on non speech audio. Human-Computer Interaction 4(1): 1–9.
3. Cohen, J. (1993) “Kirk Here:” Using Genre Sounds To Monitor Background Activity, in S. Ashlund, K. Mullet, A. Henderson, E. Hollnagel and T. White (eds.) INTERCHI'93 Adjunct Proceedings, (pp. 63–64), New York: ACM.
4. Edwards, A. (1988) The design of auditory interfaces for visually disabled users. In E. Soloway, D. Frye and S. Sheppard (eds.) Conference Proceedings “Human Factors in Computing Systems” CHI' 88. (pp. 83–88), New York: ACM.
5. Gaver, W. (1989) The Sonic Finder: an interface that uses auditory icons. Human Computer Interaction 4(1):67–94.