“Variously defined as unconventional literature, literature not available via traditional publishing, and publications with little or no general distribution, grey literature represents an immense stash of information that is crucial to various researchers and information professionals.”
Auger, Charles P. Information Sources in Grey Literature. London: Bowker-Saur, 1998.
Searching the grey literature may seem challenging as there are so many sources. You should search the resources that are most relevant to your systematic review.
Chapters 7 & 8 of the title below provide guidance on finding grey literature:
Some of our databases, depending on the discipline, index grey literature as well as journals.
Check the database scope note.
See also the following sources:
Lenus : the Irish Health Repository
40 million publications, 1 million research data sets
from 17,000 content providers and 22 funders linked together for an integrated research search.
"Overton is the world's largest collection of policy documents, parliamentary transcripts, government guidance and think tank research."
Registry of Open Access Repositories (ROAR)
Social Science Research Network
Social Science Research Network (SSRN) is devoted to the rapid worldwide dissemination of social science research and is composed of a number of specialized research networks in each of the social sciences.
See our Theses and dissertations
See also the full list of national and international theses databases to which we provide access.
For systematic reviews, see also https://libguides.library.universityofgalway.ie/Systematic_Reviews/greyliterature
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