“the average number of times articles from the journal published in the past two years have been cited in the JCR year”
The Impact factor (2016)= (total no. of citations obtained in 2016 from previous two years of publications)
(total no. of papers published in 2014 and 2015)
650 / 350 =1.85
For more information on JIF http://admin-apps.webofknowledge.com/JCR/help/h_impfact.htm
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