Quality of Journals – JCR Journal Citation Reports Livia Vasas lvasas@lib.sote.hu 2013 September

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JCR Journal Citation Reports

About this database

Impact Factor - ISSN IF: Average number of times articles from the journal published in the past two years have been cited in the JCR year. ISSN:International Standard Serial Number, a unique number that identifies a journal. The format is four numbers, a hyphen (-), three numbers, and then a check character that may be a number or X. For example, 0010-4620

IF value - calculation

Questions What was the IF value of the journal Nature Genetics in 2007 ? 25,556 What was the IF value of the journal PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA  in 2008 ? 9,380

Questions What was the IF value of the journal JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION in 2009 ? 28,899 How many different journal titles are in 2008 In the subject „Gerontology”? 25

Questions How many journal titles are in the 2009 JCR Social Science Edition ? 2257 And in the 2010 JCR Social Science Edition 2731

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