[1] C. Ahlberg and B. Shneiderman, The Alphaslider: A Compact and Rapid Selector, in "Proceedings CHI'94: Human Factors in Computing Systems", 1994, pp. 365-371.

[2] C. Ahlberg and B. Shneiderman, Visual Information Seeking: Tight Coupling of Dynamic Query Filters with Starfield Displays, in "Proceedings of CHI '94, (Boston, MA, April 24-28)", ACM Press, New York, 1994, pp. 313-317.

[3] E.A. Bier, M.C. Stone, K. Pier, W. Buxton, and T. D. DeRose, Toolglass and Magic Lenses: The See-Through Interface, in "Proceedings of Siggraph '93", (Anaheim, CA, August) Computer Graphics Annual Conference Series, ACM, 1993, pp. 73-80.

[4] S.K. Card, G.G. Robertson, W. York, The WebBook and the Web Forager: An information work-space for the World Wide Web, in "Proc. of ACM Conference on Human Factors in Computing Systems", ACM Press, New York, 1996, 111-116.

[5] L. Chittaro and C. Combi, Representation of Temporal Intervals and Relations: Information Visualization Aspects and their Evaluation, in "Proceedings of TIME-01: 8th International Symposium on Temporal Representation and Reasoning", IEEE Press, 2001.

[6] L. Chittaro and R. Ranon, Adding adaptive features to Virtual Reality interfaces for e-commerce, in "Proceedings of AH2000: International Conference on Adaptive Hypermedia and Adaptive Web-based Systems", Lecture Notes in Computer Science 1892, Springer-Verlag, Berlin, 2000.

[7] S.G. Eick, J.L. Steffen, and E.E. Sumner, SeeSoft – A Tool for Visualizing Software, "IEEE Trans. on Software Engineering", 18711, Nov. 1992, pp. 957-968.

[8] S. Feiner and C. Beshers, Worlds Within Worlds: Metaphors for Exploring n-dimensional Virtual Worlds, in "UIST 90, ACM Symp. on User Interface Software", ACM Press, New York, 1990, pp. 76-83.

[9] G.W. Furnas, Generalized fisheye views. in "Proc. of ACM Conference on Human Factors in Computing Systems", Boston, Massachusetts, April 13-17, ACM Press, pp. 16-23.

[10] D.F. Jerding and J.T. Stasko, The Information Mural: A Technique for Displaying and Navigating Large Information Spaces, "InfoVis 95", IEEE Press, Atlanta, 1995, pp. 43-50.

[11] B. Johnson, TreeViz: Treemap Visualization of Hierarchically Structured Information, in "Proc. of ACM Conference on Human Factors in Computing Systems", ACM Press, New York, 1992, pp. 369-370.

[12] B. Johnson and B. Shneiderman, Tree-maps: A space-filling approach to the visualization of hierarchical information structures, in "Proceedings of IEEE Visualization '91, San Diego, CA, Oct 22-25", 1991, pp. 284-291.

[13] J. Lamping, R. Rao, and P. Pirolli, A Focus + Context Technique Based on Hyperbolic Geometry for Visualizing Large Hierarchies, in "Proc. of ACM Conference on Human Factors in Computing Systems", ACM Press, New York, 1995, pp. 401-408.

[14] J.D. Mackinlay, G.G. Robertson, S.K. and Card, The perspective wall: detail and context smoothly integrated, in "Proc. of ACM Conference on Human Factors in Computing Systems", ACM Press, New York, 1991, pp. 173-179..

[15] C. Plaisant, B. Milash, A. Rose, S. Widoff, B. Shneiderman, Lifelines: visualizing personal histories, in "Proc. of ACM Conference on Human Factors in Computing Systems", ACM Press, New York, 1996, pp. 221-227.

[16] G.G. Robertson, S.K. Card, and J.D. Mackinlay, Cone Trees: Animated 3D visualization of hierarchical information, in "Proc. of ACM Conference on Human Factors in Computing Systems", ACM Press, New York, 1991, pp. 189-194.

[17] G.G. Robertson, S.K. Card, amd J.D. Mackinlay, Information visualization using 3D interactive animation, "Communications of the ACM", 36/4, 1993, pp. 57-71.

[18] M. Sarkar and M.H. Brown, Graphical Fisheye Views of Graphs, in "Proc. of ACM Conference on Human Factors in Computing Systems", ACM Press, New York, 1992, pp. 83-91.