1. Mansur DL, Blattner M, Joy K. SoundGraphs: a numerical data analysis method for the blind. Journal of Medical Systems 1985; 9: 163–174
2. Kramer G. (ed.) Auditory display. Addison-Wesley, Reading, MA, 1994
3. Mynatt ED, Back M, Want R, Baer M. Designing audio aura. In: Proceedings of ACM CHI'98, Los Angeles, CA. ACM Press, Addison-Wesley, 1998; 566–573
4. Brewster SA, Cryer PG. Maximising screen-space on mobile computing devices. In: Summary Proceedings of ACM CHI'99, Pittsburgh, PA. ACM Press Addison Wesley, 1999; 224–225
5. Walker VA, Brewster SA. Spatial audio in small screen device displays. Personal Technologies 2000; 4: 144–154