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What is Grey Literature?
Grey Literature are non-conventional publications. These can include, but are not limited to, the following types of materials:
- Reports (advanced reports, technical reports, statistical reports, market research reports, etc.)
- Conference proceedings
- Technical specifications/standards
- Official documents not published commercially (government reports).
Because of the non-conventional nature of grey literature, it can be difficult to locate and obtain. Often, grey literature is not indexed or included in conventional databases. Because of this, it must be sought out, generally on the web, but sometimes directly from the researchers or organizations producing the materials.
General Sources for Grey Literature
Grey Literature Report
New York Academy of Medicine’s publication alerting readers to new grey literature publications in health services research and selected urban health topics.
BASE: Bielfeld Academic Search Engine
Search engine specifically for web resources from academic content providers.
Searchable, browsable website set up to collect and share the social sector's knowledge. Includes information on Health research.
NTIS: National Technical information Service
Most comprehensive collection of U.S.-sponsored research in science, technology, and information.
Previously known as the Virginia Henderson Global Nursing e-Repository. Searchable repository dedicated to sharing works created by nurses around the world, including full-text nursing research, education and evidence-based practice materials.
High quality clinical research evidence with millions of indexed articles.
If you would like to find more specific sources for clinical-, drug-, or data-related grey literature, take a look at our Grey Literature LibGuide.