3Stuart K. Card, Jock D. Maekinlay, Ben Shneidennan (1999) . Readings in bformation Visualization: Using Vion to Think. Morgan Kauf- mann Publishers. p. 8.
4Ben Shneiderman. Inventing Discovery. Tools: Combining Information Visualization with Data Mining. hffonnation Visualization 2002 ( 1 ) : 5 -12.
5Kamran Sedig, Sonja Rowhani, Jim Morey, Hai-Ning Liang. Application of information visualization techniques to the design mathemtttical mindtool : a usability study. Information Visualization. 2003 ( 2 ) : 142 - 159.
6Andrew Vande, Moere. Helen. On the Role of Design in Infrnuaiom,isttalization, lnfinnation Visualization 2010 ( 4 ) : 356 - 371.