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Examples of grey (gray) literature include technical or research reports, doctoral dissertations, some conference papers, some official publications, and other types ... 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.aligncenter { text-align: center; } </style> </head> <body data-rsssl=1 class="home page-template-default page page-id-7 wp-custom-logo wp-embed-responsive post-image-aligned-center no-sidebar nav-below-header separate-containers header-aligned-center dropdown-hover" itemtype="https://schema.org/WebPage" itemscope> <a class="screen-reader-text skip-link" href="#content" title="Skip to content">Skip to content</a> <header class="site-header grid-container" id="masthead" aria-label="Site" itemtype="https://schema.org/WPHeader" itemscope> <div class="inside-header grid-container"> <div class="site-logo"> <a href="https://opengrey.eu/" rel="home"> <picture fetchpriority="high" class="header-image is-logo-image"> <source type="image/webp" srcset="https://opengrey.eu/wp-content/uploads/2022/05/opengrey.gif.webp"/> <img fetchpriority="high" alt="" src="https://opengrey.eu/wp-content/uploads/2022/05/opengrey.gif" width="354" height="59"/> </picture> </a> </div> </div> </header> <div class="site grid-container container hfeed" id="page"> <div class="site-content" id="content"> <div class="content-area" id="primary"> <main class="site-main" id="main"> <article id="post-7" class="post-7 page type-page status-publish" itemtype="https://schema.org/CreativeWork" itemscope> <div class="inside-article"> <header class="entry-header"> <h1 class="entry-title" itemprop="headline">OPENGREY.EU – Grey Literature Database</h1> </header> <div class="entry-content" itemprop="text"> <div class="su-list" style="margin-left:0px"> <ul> <li><i class="sui sui-info-circle" style="color:#004AAD"></i> You can download the OpenGrey MySQL file from the <a href="https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:200362/tab/2" target="_blank" rel="noopener">DANS EASY Archive</a>.</li> </ul> </div> <p>The<strong> System for Information on Grey Literature in Europe </strong>used to give open access to 700.000 bibliographical references of grey literature (paper) produced in Europe and allowed to <strong>export records</strong> and <strong>locate the documents</strong>.</p> <p>Examples of grey (<i>gray</i>) literature include technical or <strong>research reports</strong>, <strong>doctoral dissertations</strong>, some <strong>conference papers</strong>, some official publications, and other types of grey literature.</p> <p>OpenGrey covered Science, Technology, Biomedical Science, Economics, Social Science and Humanities.</p> <div class="sue-icon-panel" data-url="" data-target="self" style="background-color:#f9f9f9;color:#333333;border-radius:0px;-moz-border-radius:0px;-webkit-border-radius:0px;box-shadow:0px 1px 2px #eeeeee;-moz-box-shadow:0px 1px 2px #eeeeee;-webkit-box-shadow:0px 1px 2px #eeeeee;border:1px solid #cccccc"><div class="sue-icon-panel-head"><i class="sui sui-search" style="font-size:36px;color:#333333"></i></div><div class="sue-icon-panel-content sue-content-wrap" style="text-align:left"> <h2 style="text-align: center;">Archived Top Searches</h2> <ul> <li><a href="https://opengrey.eu/item/display/10068/700015-2/">Towards a Prague Definition of Grey Literature</a></li> <li><a href="https://opengrey.eu/item/display/10068/894206/">An occitan scripta in the kingdom of Navarre in the Middle Ages (XIII-XVI si猫cles) (formation and functioning)</a></li> <li><a href="https://opengrey.eu/item/display/10068/4266/">The second law, the fourth law, recycling and limits to growth</a></li> <li><a href="https://opengrey.eu/item/display/10068/441113-2/">The linguistic relationship between Armenian and Greek</a></li> </ul> </div></div> <p> </p> <h2>Subjects – SIGLE Classification</h2> <p><em>System for Information on Grey Literature in Europe聽</em></p> <div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed" data-scroll-offset="0" data-anchor-in-url="no"><div class="su-spoiler-title" tabindex="0" role="button"><span class="su-spoiler-icon"></span>01 Aeronautics</div><div class="su-spoiler-content su-u-clearfix su-u-trim"> <ul> <li>010 Aeronautics, general</li> <li>01A Aerodynamics</li> <li>01B Aircraft operations, aircraft safety, aircraft accidents, air traffic control</li> <li>01C Aircraft, aircraft components</li> <li>01D Aircraft flight control, aircraft instrumentation</li> <li>01E Airport operations</li> <li>01F Parachutes, decelerators</li> </ul> </div></div><div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed" data-scroll-offset="0" data-anchor-in-url="no"><div class="su-spoiler-title" tabindex="0" role="button"><span class="su-spoiler-icon"></span>02 Agriculture, plant and veterinary sciences</div><div class="su-spoiler-content su-u-clearfix su-u-trim"> <ul> <li>020 Agriculture, plant and veterinary sciences, general</li> <li>02A Agricultural chemistry, fertilisers, animal feed, silage, pesticides, soil conditioners</li> <li>02B Agricultural economics, agricultural markets</li> <li>02C Agricultural engineering</li> <li>02D Agronomy, crop production, crop diseases, horticulture</li> <li>02E Animal husbandry, farm animals, pets</li> <li>02F Forestry, agroforestry, sustainable forestry</li> <li>02G Veterinary sciences, veterinary medicine</li> <li>02H Aquaculture, fisheries, fishing</li> </ul> </div></div> <div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed" data-scroll-offset="0" data-anchor-in-url="no"><div class="su-spoiler-title" tabindex="0" role="button"><span class="su-spoiler-icon"></span>03 Environmental pollution, protection and control</div><div class="su-spoiler-content su-u-clearfix su-u-trim"> <ul> <li>030 Environmental pollution, protection and control, general</li> <li>03A Air pollution, emissions, acid rain</li> <li>03B Noise pollution</li> <li>03C Water pollution, oil pollution, sewage treatment, water treatment</li> <li>03D Land pollution, soil pollution</li> <li>03E Radioactive pollution, nuclear waste</li> <li>03F Solid waste pollution, waste disposal, landfills</li> <li>03G Environmental health, environmental safety</li> <li>03H Environmental law, environmental regulations</li> <li>03I Waste recycling (non-nuclear), waste recovery</li> <li>03J Nuclear waste reprocessing</li> </ul> </div></div> <div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed" data-scroll-offset="0" data-anchor-in-url="no"><div class="su-spoiler-title" tabindex="0" role="button"><span class="su-spoiler-icon"></span>05 Humanities, psychology and social sciences</div><div class="su-spoiler-content su-u-clearfix su-u-trim"> <ul> <li>050 Humanities, psychology and social sciences, general</li> <li>05A Management, administration, business studies</li> <li>05B Information science, librarianship</li> <li>05C Ergonomics</li> <li>05D Economics, economic theory</li> <li>05E History</li> <li>05F Archaeology</li> <li>05G Anthropology, folklore, ethnology</li> <li>05H Philosophy, theology, religion</li> <li>05I Law, law enforcement, penal administration</li> <li>05J Political science, public administration</li> <li>05K Linguistics</li> <li>05L Literature, mass media, performing arts</li> <li>05M Sport, Recreation, tourism</li> <li>05N Arts, crafts</li> <li>05O Architecture</li> <li>05P Education, training</li> <li>05Q Psychology</li> <li>05R Sociology, social studies, welfare studies, social services</li> <li>05S Labour studies</li> <li>05T Health services, health administration, community care services</li> <li>05U Housing provision, property</li> <li>05V Urban planning, rural planning, transport planning, countryside conservation</li> <li>05W Demography, population studies</li> <li>05X Internal and EU commerce, domestic marketing, consumer affairs</li> <li>05Y International commerce, international marketing, international trade</li> <li>05Z Banking, finance, taxation</li> </ul> </div></div> <div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed" data-scroll-offset="0" data-anchor-in-url="no"><div class="su-spoiler-title" tabindex="0" role="button"><span class="su-spoiler-icon"></span>06 Biological and medical sciences</div><div class="su-spoiler-content su-u-clearfix su-u-trim"> <ul> <li>060 Biological and medical sciences, general</li> <li>06A Biochemistry</li> <li>06B Bioengineering, biomedical engineering, biotechnology, biochemical engineering</li> <li>06C Human anatomy, human histology</li> <li>06D Bionics</li> <li>06E Medicine</li> <li>06F Ecology</li> <li>06G Escape, rescue, survival</li> <li>06H Food technology, food microbiology</li> <li>06I Hygiene, sanitation</li> <li>06J Industrial medicine, occupational health</li> <li>06K Life-support systems</li> <li>06L Medical equipment, hospital equipment, medical diagnostic equipment</li> <li>06M Microbiology</li> <li>06N Personnel selection, employee fitness</li> <li>06O Pharmacology, pharmacy, pharmaceutical chemistry</li> <li>06P Physiology</li> <li>06Q Protective equipment, protective clothing</li> <li>06R Radiobiology, radiation biology</li> <li>06S Stress physiology, human, aerospace medicine</li> <li>06T Toxicology, poisons</li> <li>06U Wounds, Injuries, trauma medicine</li> <li>06V Genetics, cytology, molecular biology</li> <li>06W Botany</li> <li>06X Zoology</li> <li>06Y Biophysics</li> <li>06Z Alternative medicine</li> </ul> </div></div> <div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed" data-scroll-offset="0" data-anchor-in-url="no"><div class="su-spoiler-title" tabindex="0" role="button"><span class="su-spoiler-icon"></span>07 Chemistry</div><div class="su-spoiler-content su-u-clearfix su-u-trim"> <ul> <li>070 Chemistry, general</li> <li>07A Chemical engineering, industrial chemistry</li> <li>07B Inorganic chemistry</li> <li>07C Organic chemistry</li> <li>07D Physical chemistry</li> <li>07E Nuclear chemistry, radiochemistry</li> <li>07F Analytical chemistry</li> </ul> </div></div> <div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed" data-scroll-offset="0" data-anchor-in-url="no"><div class="su-spoiler-title" tabindex="0" role="button"><span class="su-spoiler-icon"></span>08 Earth and atmospheric sciences</div><div class="su-spoiler-content su-u-clearfix su-u-trim"> <ul> <li>080 Earth and atmospheric sciences, general</li> <li>08A Oceanography</li> <li>08B Hydrology, limnology</li> <li>08C Glaciology, snow, ice, permafrost</li> <li>08D Geography</li> <li>08E Geology, mineralogy, sedimentology</li> <li>08F Seismology, earthquakes</li> <li>08G Volcanology, plate tectonics</li> <li>08H Earth, interior structure</li> <li>08I Geochemistry</li> <li>08J Geomagnetism, geodesy, cartography</li> <li>08K Soil Science, pedology</li> <li>08L Mining</li> <li>08M Atmospheric sciences</li> <li>08N Meteorology, climatology</li> <li>08O Environment</li> <li>08P Waste management</li> <li>08Q Biosphere</li> </ul> </div></div> <div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed" data-scroll-offset="0" data-anchor-in-url="no"><div class="su-spoiler-title" tabindex="0" role="button"><span class="su-spoiler-icon"></span>09 Electronics and electrical engineering, computer science</div><div class="su-spoiler-content su-u-clearfix su-u-trim"> <ul> <li>090 Electronics and electrical engineering, computer science, general</li> <li>09A Components</li> <li>09B Circuits</li> <li>09C Electronic devices, electromechanical devices</li> <li>09D Optoelectronics</li> <li>09E Power transmission, signal transmission</li> <li>09F Electrometry, electronic test equipment</li> <li>09G Computer hardware</li> <li>09H Computer software, programming</li> <li>09I Control systems, control theory</li> <li>09J Information theory, coding theory, signal processing</li> <li>09K Pattern recognition, image processing</li> <li>09L Computer-Aided Design (CAD)</li> <li>09M Computer Aided Manufacturing (CAM)</li> <li>09N Robotics</li> <li>09O Applications of computer science, business data processing</li> <li>09P Artificial Intelligence</li> </ul> </div></div> <div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed" data-scroll-offset="0" data-anchor-in-url="no"><div class="su-spoiler-title" tabindex="0" role="button"><span class="su-spoiler-icon"></span>10 Energy and power</div><div class="su-spoiler-content su-u-clearfix su-u-trim"> <ul> <li>100 Energy and power, general</li> <li>10A Coal</li> <li>10B Oil</li> <li>10C Natural gas</li> <li>10D Oil shales, coal shales, tar sands</li> <li>10E Fission fuels</li> <li>10F Fusion fuels</li> <li>10G Isotope technology, radiation source technology</li> <li>10H Hydrogen</li> <li>10I Other synthetic and natural fuels</li> <li>10J Hydro energy</li> <li>10K Solar energy</li> <li>10L Geothermal energy</li> <li>10M Wave power, tidal power</li> <li>10N Wind power</li> <li>10O Nuclear power plants</li> <li>10P Nuclear reactor technology</li> <li>10Q Energy storage</li> <li>10R Direct energy conversion, Fuel cells</li> <li>10S Energy conservation, Energy consumption</li> <li>10T Special purpose power plants</li> <li>10U Biomass energy</li> <li>10V Thermodynamic cycles</li> <li>10W Conventional power plants</li> </ul> </div></div> <div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed" data-scroll-offset="0" data-anchor-in-url="no"><div class="su-spoiler-title" tabindex="0" role="button"><span class="su-spoiler-icon"></span>11 Materials</div><div class="su-spoiler-content su-u-clearfix su-u-trim"> <ul> <li>110 Materials, general</li> <li>11A Adhesives, sealants</li> <li>11B Ceramics, refractories, glasses</li> <li>11C Coatings, paints, finishes</li> <li>11D Composites</li> <li>11E Fibres, textiles</li> <li>11F Metallurgy, metallography</li> <li>11G Miscellaneous materials</li> <li>11H Oils, Lubricants, hydraulic fluids</li> <li>11I Plastics</li> <li>11J Elastomers</li> <li>11K Solvents, cleaners, abrasives</li> <li>11L Wood, paper</li> <li>11M Material degradation, corrosion, fracture mechanics</li> </ul> </div></div> <div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed" data-scroll-offset="0" data-anchor-in-url="no"><div class="su-spoiler-title" tabindex="0" role="button"><span class="su-spoiler-icon"></span>12 Mathematical sciences</div><div class="su-spoiler-content su-u-clearfix su-u-trim"> <ul> <li>120 Mathematical sciences, general</li> <li>12A Pure mathematics</li> <li>12B Statistics, operations research</li> <li>12C Applied mathematics</li> </ul> </div></div> <div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed" data-scroll-offset="0" data-anchor-in-url="no"><div class="su-spoiler-title" tabindex="0" role="button"><span class="su-spoiler-icon"></span>13 Mechanical, industrial, civil and marine engineering</div><div class="su-spoiler-content su-u-clearfix su-u-trim"> <ul> <li>130 Mechanical, industrial, civil and marine engineering, general</li> <li>13A Air conditioning, heating, lighting, ventilation, refrigeration</li> <li>13B Civil engineering</li> <li>13C Construction equipment, building materials</li> <li>13D Containers, Packaging</li> <li>13E Couplings, fittings, fasteners, joints</li> <li>13F Ground transport systems</li> <li>13G Hydraulic systems, pneumatic systems</li> <li>13H Industrial processes, manufacturing processes</li> <li>13I Machinery, tools</li> <li>13J Marine engineering, offshore engineering</li> <li>13K Pumps, filters, pipes, tubing, valves, pressure vessels</li> <li>13L Safety engineering</li> <li>13M Structural engineering</li> <li>13N Building technology</li> </ul> </div></div> <div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed" data-scroll-offset="0" data-anchor-in-url="no"><div class="su-spoiler-title" tabindex="0" role="button"><span class="su-spoiler-icon"></span>14 Methods and equipment</div><div class="su-spoiler-content su-u-clearfix su-u-trim"> <ul> <li>140 Methods and equipment, general</li> <li>14A Cost effectiveness, cost-benefit analysis</li> <li>14B Laboratories, test facilities, test equipment</li> <li>14C Recording equipment</li> <li>14D Equipment reliability, quality control</li> <li>14E Reprographics, photographic processes</li> </ul> </div></div> <div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed" data-scroll-offset="0" data-anchor-in-url="no"><div class="su-spoiler-title" tabindex="0" role="button"><span class="su-spoiler-icon"></span>15 Military sciences</div><div class="su-spoiler-content su-u-clearfix su-u-trim"> <ul> <li>150 Military sciences, general</li> <li>15A Antisubmarine warfare</li> <li>15B Chemical warfare, biological warfare</li> <li>15C Defence</li> <li>15D Military intelligence</li> <li>15E Military logistics</li> <li>15F Nuclear warfare</li> <li>15G Military operations, military strategy, military tactics</li> </ul> </div></div> <div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed" data-scroll-offset="0" data-anchor-in-url="no"><div class="su-spoiler-title" tabindex="0" role="button"><span class="su-spoiler-icon"></span>16 Missile technology</div><div class="su-spoiler-content su-u-clearfix su-u-trim"> <ul> <li>160 Missile technology, general</li> <li>16A Missile launching, missile ground support</li> <li>16B Missile trajectories</li> <li>16C Missile warheads, missile fuses</li> <li>16D Missiles</li> </ul> </div></div> <div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed" data-scroll-offset="0" data-anchor-in-url="no"><div class="su-spoiler-title" tabindex="0" role="button"><span class="su-spoiler-icon"></span>17 Navigation, communications, detection and countermeasures</div><div class="su-spoiler-content su-u-clearfix su-u-trim"> <ul> <li>170 Navigation, communications, detection and countermeasures, general</li> <li>17A Acoustic detection, sonar</li> <li>17B Communication systems, telecommunications</li> <li>17C Direction finding</li> <li>17D Electronic countermeasures, acoustic countermeasures</li> <li>17E Infrared detection, ultraviolet detection</li> <li>17F Magnetic detection</li> <li>17G Navigation</li> <li>17H Optical detection</li> <li>17I Radar detection</li> <li>17J Seismic detection</li> </ul> </div></div> <div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed" data-scroll-offset="0" data-anchor-in-url="no"><div class="su-spoiler-title" tabindex="0" role="button"><span class="su-spoiler-icon"></span>19 Ordnance</div><div class="su-spoiler-content su-u-clearfix su-u-trim"> <ul> <li>190 Ordnance, general</li> <li>19A Pyrotechnics, explosives, ammunition</li> <li>19B Bombs</li> <li>19C Combat vehicles</li> <li>19D Explosions, ballistics, armour</li> <li>19E Fire control, bombing systems</li> <li>19F Guns</li> <li>19G Rockets</li> <li>19H Underwater ordnance</li> </ul> </div></div> <div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed" data-scroll-offset="0" data-anchor-in-url="no"><div class="su-spoiler-title" tabindex="0" role="button"><span class="su-spoiler-icon"></span>20 Physics</div><div class="su-spoiler-content su-u-clearfix su-u-trim"> <ul> <li>200 Physics, general</li> <li>20A Theoretical physics</li> <li>20B Elementary particles, high energy physics</li> <li>20C Nuclear physics, particle accelerators</li> <li>20D Atomic physics, molecular physics</li> <li>20E Optics, masers, lasers</li> <li>20F Acoustics, vibrations, noise analysis</li> <li>20G Thermodynamics</li> <li>20H Metrology</li> <li>20I Fluid mechanics</li> <li>20J Plasma physics, gas discharges</li> <li>20K Solid-state physics</li> <li>20L Biophysics</li> <li>20M Astrophysics</li> <li>20N Astronomy, celestial mechanics</li> <li>20O Astrophysics</li> <li>20P Cosmic rays</li> <li>20Q Astrogeology, planetary research</li> </ul> </div></div> <div class="su-spoiler su-spoiler-style-default su-spoiler-icon-plus 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