"Carlo Riccardi" said his opinion in "https://blogs.plos.org/plos/2009/07/plos-journals-measuring-impact-where-it-matters/" on August 20, 2013:

"The IF is not appropriate to evaluate the value of an article. Citations over the time are more appropriate for an individual article evaluation. Notably, the entire number of citations should be considered and not the number of citations in a certain period of time: citation of an article published many years ago may have more value than citation of recently published articles."

What is your opinion? 

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