Figure 6
A line graph titled Bradford's Bibliograph. The horizontal axis is labeled Sources ranging from 0 to 140. The vertical axis is labeled Articles ranging from -40 to 50. The graph includes two lines: one labeled Sources and another labeled Linear Sources. The Sources line starts at around 40 articles and decreases sharply to near 0 articles at around 10 sources, then gradually declines to around -30 articles at 120 sources. The Linear Sources line starts at around 30 articles and decreases steadily to around -30 articles at 120 sources.Bradford's bibliograph based on the author's compiled data. Source: Author's own work