Axia Digital Library
The Axia Digital Library (ADL) is a metadata indexing system using the OAI Harvester of the Public Knowledge Project which allows to create a searchable index of the metadata from Open Archives Initiative-compliant archives, such as sites using Open Journal Systems or Open Conference Systems.
The PKP OAI Harvester is currently compatible with versions 1.1 and 2.0 of the OAI Harvesting Protocol.