Grey Literature
The term “grey literature” refers to documents which are not available from common commercial publishers. These are in particular Master’s theses, research reports, conference proceedings, company literature, etc. An advantage of this type of literature is above all its topicality, and, very often, also free accessibility.
 | Bibliotheque des rapports publics French national system for registration of reports of an administrative character |
 | CERN Document Server Library of grey literature documents registered by the CERN Document Server, which focuses on research in the field of physics. |
 | CogPrints Electronic archive of research reports, conference proceedings and reprints of articles from the field of cognitive sciences. |
 | CORDIS Collection of documents concerning information about research and development in the EU |
 | EconPapers Archive texts related to all fields of economics |
 | Edinburg Research Archive Archive of grey literature collected at the University of Edinburgh. Dissertation theses are not included, the archive mostly includes preprints, research reports, etc. |
 | E-LIS Archive of electronic materials from information and library science |
 | E-Print Network System for provision of access to preprint materials from science and technology |
 | eScholarship Archive of grey literature for all scientific disciplines |
 | GPO Collection of official administrative materials of the U.S. Government |
 | InSpire The database includes grey literature documents for all fields of physics |
 | National Depository of Grey Literature Archive of electronic materials from information and library science |
 | Nasa Technical Report Server The database includes particularly technical reports from the field of cosmic research and related fields |
 | EECS Technical reports Electrical Engineering and Computer Sciences provides world-wide access to grey literature in the field of computer science |
 | NTIS The system collects technical reports from the USA in the field of science, technology and business |
 | Science.gov Portal of the U.S. Government aimed to support science. It is produced by the National Technical Information Service. |
 | arXiv.org Archive of preprint documents from physics, mathematics and other fields of technology. |
 | ERCIM Archive of preprint documents from physics, mathematics, computer sciences and other fields of technology. |