Fig. 1From: Fractal dimension analogous scale-invariant derivative of Hirsch’s indexA citation network artificially constructed for the purpose of illustration. Each dot represents an article, and the straight line is a citation relation. To visualize citation direction, a cited article is placed below the citing article. The article “A” (bottom red dot) comes first within this network, then “B” comes after it to cite “A”. The network above “A” (the whole network) is similar to the one above “B” in a sense that they share some statistical properties like degree distributionBack to article page