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Find Grey Literature: Get Started
A quick guide to finding and using grey literature in your research
What is Grey Literature?
Grey literature is typically unpublished or informally published works from the government, research groups, think tanks and professional associations and may include all kinds of sources, including:
arXiv provides open access to over a million e-prints in the fields of computer science, economics, electrical engineering and systems science, mathematics, physics, quantitative biology, quantitative finance, and statistics.
The contents of arXiv conform to Cornell University academic standards.
NASA Technical Reports Server (NTRS) provides access to aerospace-related citations, full-text online documents, images, and videos. The types of information include: conference papers, journal articles, meeting papers, patents, research reports, images, movies, and technical videos.
Scientific and technical information (STI) created or funded by NASA.
The report is a publication produced by the The New York Academy of Medicine between 1999 - 2016, alerting readers to new grey literature publications in health services research and selected urban health topics.
The World Bank provides open access to a comprehensive set of data about development in countries around the globe, together with other datasets cited in the data catalog. Broader access to these data allow policymakers and advocacy groups to make better-informed decisions and measure improvements more accurately. They are also valuable tools to support research by journalists, academia, and others, broadening understanding of global issues.
OAIster is a union catalog of millions of records representing open access digital resources that was built by harvesting from open access collections worldwide using the Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH). Today, OAIster includes more than 30 million records representing digital resources from more than 1,500 contributors.
OpenDOAR is an authoritative directory of academic open access repositories. Each OpenDOAR repository has been visited by project staff to check the information that is recorded. As well as providing a simple repository list, OpenDOAR lets you search for repositories or search repository contents.
National Renewable Energy Laboratory. Building and calibration of a FAST model of the SWAY prototype floating wind turbine preprint. By J.H. Koh. (NREL/CP-5000-60096). September 2013. (Conference Paper). Available at: http://purl.fdlp.gov/GPO/gpo47393; Accessed: 05/12/2014.
"Energy integrative building with ecological environmental protection" by Xudong Liu, Geng Liu, and Ziyan Liu. U.S. Patent 8,615,940 (Dec. 31, 2013). Available at: Google, Patents, http://www.google.com/patents/US8615940. Accessed: 12/09/2016.