Fig 1.
Power law (a) probability distribution and (b) correlation.
Fig 2.
Power law with exponential cut-off.
Table 1.
Test of evolution of power law distributions for citations to peer-reviewed 1997 and 1998 documents indexed in the Scopus database.
Statistically significant p-values are denoted in bold. For each year in the evolution of the distribution p-values for the fit to the power-law model and likelihood (LR) ratios with p-values are given for alternatives distributions.
Table 2.
Test of evolution of power law distributions for citations to peer-reviewed 1984 documents indexed in the Web of Science database.
Statistically significant p-values are denoted in bold. For each year in the evolution of the distribution p-values for the fit to the power-law model and likelihood (LR) ratios with p-values are given for alternatives distributions.
Table 3.
Scopus—support for a power law distribution.
Table 4.
Web of Science—support for a power law distribution.
Table 5.
Support for power law distribution—field level analyses.
Fig 3.
Scaling correlation between exponential growth of impact and size.
Table 6.
Scaling exponents for scaling correlation between impact and field sizes.