Impact Factors
The E-Resources Management Handbook / Jo Cross: Impact factors – the basics
http://thomsonreuters.com/products_services/science/free/essays/
http://garfield.library.upenn.edu/
http://pitt.libguides.com/content.php?pid=94052&sid=703865
http://scientific.thomsonreuters.com/imgblast/JCRFullCovlist-2011.pdf
http://admin-apps.webofknowledge.com/JCR/static_html/notices/notices.htm - se: Title suppressions
http://lawlib.wlu.edu/lj/method.asp#combinedscore - nogle læseværdige betragtninger om Impact factors for "law journals"
https://citationculture.wordpress.com/2013/06/03/the-evidence-on-the-journal-impact-factor/