Including Open Access Information In Institutional Repositories

Repositories offer not only publications but also the publication's metadata, which can easily be used for further processing. At theUniversity Library of Regensburg and within the project JOIN2 the management of article processing charges (APCs) is integrated intoits institutional repository. In addition, we have developed a XML-based format including cost information in the OAI-PMH interface. TheOpenAPC initiative by the University Library of Bielefeld harvests the information and releases datasets of the fees paid for Open Access