EC Library Guide on persistent identifiers: Introduction
Introduction
About this Library Guide
This Library Guide has been compiled to support the work of the European Commission. It may also be of interest to students, researchers and the wider public.
The Library Guide presents a curated selection of relevant sources on the topic.
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Persistent identifiers
Identifiers are alphanumeric strings which uniquely identify a given resource. They are linked to associated metadata (i.e. information describing that resource) and as such can be used to identify different formats, language versions, key titles of serials, etc.
Persistent identifiers (PIDs) are unique, long-lasting references to digital objects.
Source: Publications Office of the European Union
The resources listed in the EC Library Guides do not necessarily represent the positions, policies or opinions of the EU institutions and bodies.