1. Baeza-Yates, R., Ribeiro-Neto, B.: User Interface and Visualization. Modern Information Retrieval, pp. 258–260. ACM Press, New York, England (1999)
2. Beheshti, J., Large, A., Julian, C.A.: Designing A Virtual Reality Interface for Children’s Web Portals, pp. 1–13. Graduate School of Library & Information Studies, McGill University, Montreal (2005)
3. Bennett, M., Cummins, F.: ORRIL: a simple building blocks approach to Zoomable user interfaces. In: 8th International Conference on Information Visualisation, IEEE Computer Society, London, pp. 639–644 (2004)
4. Bowman, D.A., Kruijff, E., Laviola, J.J., Poupyrev, I.: An Introduction to 3-D user interface design. Presence 10(1), 96–108 (2001)
5. Buchanan, G., Blandford, A., Jones, M. Integrating information seeking and structuring: exploring the role of spatial hypertext in a digital library. In: Fifteenth ACM Conference on Hypertext and Hypermedia, ACM hypertext, California (2004)