The Archive Of European Integration


Welcome to the Archive of European Integration (AEI). The AEI is an electronic repository and archive for research materials on the topic of European integration and unification. The AEI collects two types of materials: certain types of independently-produced research materials and official European Community/European Union documents - for more detail, see the Contentspage. Authors who wish to post materials should consult the Contents page, the Archive Policythe FAQ and the Getting Started page. To access bibliographic guides to select groups of EU documents, go to Bibliographic Surveys of Select EU Documents.

This website reproduces many European Community documents, but only European Community legislation printed in the paper edition of the Official Journal of the European Union is deemed authentic.


The new AEIPlus now allows simultaneous searching of Archive of European Integration (AEI) and the European Research Papers Archive (ERPA), including the European Integration online Papers (EIOP). List of institutions which have deposited materials.


At present, the AEI contains over 78,000 documents (as of August 2021).  Read our Privacy Policy.  Running on GNU EPrints archive-creating software, which generates eprints archives that are compliant with the Open Archives Protocol for Metadata Harvesting OAI 1.1 and 2.0.  The archive-creating software is available for free at

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2008 Hosted by the University Library System at the University of Pittsburgh.