A comparison of UNT Databases, Electronic Journals, eBooks, and our catalog items cannot be compared exactly to Google and Yahoo, because they have different system functions in a very different manner.
UNT Research options:
Shultz, Mary. “Comparing Test Searches in PubMed and Google Scholar.” Journal of the Medical Library Association : JMLA 95.4 (2007): 442–445. PMC. Web. 31 Aug. 2018.
GreyNet Internalational 2018. Grey Literature Network Services, http://www.greynet.org/home.html. Accessed 31, Aug. 2018.