9.3(top 2%)
impact factor
156.9K(top 0.1%)
papers
18.6M(top 0.1%)
citations
1.0K(top 0.1%)
h-index
9.5(top 2%)
extended IF
161.9K
all documents
19.8M
doc citations
1.6K(top 0.1%)
g-index
The graph shows the changes in the impact factor of ^ and its corresponding percentile fo
if-computation
This graph shows how the impact factor of Proceedings of the National Academy of Sciences of the United States of America is computed. The left axis depicts the number of papers published in years X-1 and X-2, and the right axis displays their citations in year X.