Science and Engineering Indicators 2004. National Science Foundation, May 04, 2004, Available on-line at: < http://www.nsf.gov/sbe/srs/seind04/ > (accessed: October 26, 2004). ISIHighlyCited.Com, http://isihighlycited.com/ (accessed: October 26, 2004). Garfield, E.: Citation Measures Used as an Objective Estimate of Creativity. Current Contents, #26, August 26, 1970 (see also: Garfield, E.: Essays of an Information Scientist, Vol:1, p.120-121, 1962-73) Garfield, E.: Citation Frequency as a Measure of Research Activity and erformance. Current Contents, #5, January 31, 1973 (see also: Garfield, E.:Essays of an Information Scientist, Vol:1, p.406-408, 1962-73) Garfield, E.: Is the Ratio Between Number of Citations and Publications Cited a True Constant? Current Contents, #6, p.5-7, February 9, 1976 (see also: Garfield, E.: Essays of an Information Scientist, Vol:2, p.419-425, 1974-76) Garfield, E., and Welljarns-Dorof, A.: Citation data: their use as quantitative indicators for science and technology evaluation and policy-making. Science and Public Policy 19(5):32 1-7, October 1992