10.9(top 1%)
Impact Factor
12(top 1%)
extended IF
927(top 1%)
H-Index
95,625
authors
146,575
papers
15,973,283
citations
32,451
citing journals
1,335,337
citing authors
Selected Period:
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Impact Factor of  based on the number of citations over 2-year window
The graph shows the changes in the impact factor of and its the corresponding percentile for the sake of comparison with the entire literature. Impact Factor is the most common scientometric index, which is defined by the number of citations of papers in two preceding years divided by the number of papers published in those years.
Impact Factor of  based on the number of citations over 2-year window
This graph shows how the impact factor of is computed. The left axis depicts the number of papers published in years X-1 and X2, and the right axis displays their citations in year X.