1. Journal impact factors;Hoeffel;Allergy,1998
2. Garfield E. The agony and the ecstasy—the history and the meaning of the journal Impact Factor. Paper presented at: International Congress on Peer Review and Biomedical Publication; September 16, 2005; Chicago, IL.
3. Harry S. Truman quotes. Available at: https://www.goodreads.com/author/quotes/203941.Harry_S_Truman. Accessed September 2, 2014.
4. Web of Science. Journal Citation Reports. Available at: http://wokinfo.com/products_tools/analytical/jcr/. Accessed September 2, 2014.