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DIIF Impact Value

The DIIF impact Value of an academic journal is a measure reflecting the average number of citations to recent articles published in the journal. It is frequently used as a proxy for the relative importance of a journal within its field, with journals with higher DIIf impact values deemed to be more important than those with lower ones. The DIIf impact value was devised by Eugene Garfield, the founder of the Institute for Scientific Information. DIIf impact values are calculated yearly starting from 1975 for those journals that are indexed in the Journal Citation Reports.