Explore 911,964 items from 76 institutions


OpenArchives.gr is the largest portal providing a single point of access to Greek scientific digital content of high quality.

It harvests the metadata of collections in Greece that are OAI-PMH compatible. Content providers are libraries, archives, academic and research institutions from Greece and Cyprus.

Interoperability specifications for the optimal publication of scientific digital resources and their inclusion in OpenArchives.gr

The guide is aimed at academic and research institutions, scientific societies and publishers of scientific content. The aim is to ensure the accessibility and maximize the availability and reuse of the produced scientific digital content.


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The Web API and Linked Data: two new ways to use data from OpenArchives.gr


OpenArchives.gr now has two new ways of publishing data. The Web API allows third-party applications to search for and display data aggregated here. Linked Data is a publishing approach which allows data integration and use.


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783,549 items have been enriched and homogenized
by EKT with regards to types


EKT enriches and homogenizes the aggregated content against a hierarchical bilingual Vocabulary of Types that has been created.

Therefore, the content of OpenArchives.gr is been classified to a compact and balanced set of types which gives it semantic cohesion and improves its searchability, presentation and multilingualism.

item types  |  navigate the content through all item types.

95 collections  |  see all institutions and their collections .

timeline  |  navigate the content by choosing issue or creation decade.