OERSI, the Open Educational Resources Search Index, is a search engine for open educational resources in higher education, provided jointly by the University Library Center of North Rhine-Westphalia (hbz) and the TIB - Leibniz Information Centre for Science and Technology and University Library since 2020. OERSI offers a central search entry point for educational resources from distributed...

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The archival collections kept in the General State Archives are an integral part of our cultural heritage. The way both state and citizens deal with their issues, small and large, is documented in those collections. The wealth of information provided is impressive and encompasses every aspect of social, political, economic and scientific as well as every other activity of the nation. The...

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It covers issues published back to 1994. The database is freely accessable via the Institute's Library catalog.

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Πανδέκτης consists by the digital collections created from the National Research Institution and a number of other institutions in the areas of Greek Civilization and Culture.

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Journal and Highly Cited Data includes the Journal Citation Reports and the Essential Science Indicators databases.

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The Journal Citation Reports module within InCites allows you to evaluate and compare journals using citation data drawn from approximately 12,000 scholarly and technical journals and conference proceedings from more than 3,300 publishers in over 60 countries. Journal Citation Reports is the only source of citation data on journals, and includes virtually all specialties in the areas of science,...

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JSTOR is a not-for-profit organization with a dual mission to create and maintain a trusted archive of important scholarly journals, and to provide access to these journals as widely as possible. JSTOR offers researchers the ability to retrieve high-resolution, scanned images of journal issues and pages as they were originally designed, printed, and illustrated. The journals archived in JSTOR span...

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lexicool.com offers primarily a directory of "all" the online bilingual and multilingual dictionaries and glossaries freely available on the Internet. The directory currently has links to over 7500 dictionaries and glossaries. You can search the dictionaries by subject or by language

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The Web of Science (formerly Web of Knowledge) is today's premier research platform, helping you quickly find, analyze, and share information in the sciences, social sciences, arts, and humanities. You get integrated access to high quality literature through a unified platform that links a wide variety of content with one seamless search. Its' content includes: - 100+ years of abstracts - Over...

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DataBank is an analysis and visualisation tool that contains collections of time series data on a variety of topics. You can create your own queries, generate tables, charts and maps and easily save, embed and share them.

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