Figure 2

International co-authorship map for the 50 most active countries in all scientific fields combined in 1995/96. Salton's measure solid line >2.5%; thick line >5%; reprinted from [4] with permission no 1827631363292.
International co-authorship map for the 50 most active countries in all scientific fields combined in 1995/96. Salton's measure solid line >2.5%; thick line >5%; reprinted from [4] with permission no 1827631363292.