The OpenAIRE Guidelines for Data Source Managers provide recommendations and best practices for encoding of bibliographic information in OAI metadata. They have adopted established standards for different classes of content providers: (1) Dublin Core™ for textual publications in institutional and thematic repositories; (2) DataCite Metadata Kernel for research data repositories; and (3) CERIF-XML for Current Research Information Systems. The principle of these guidelines is to improve interoperability of bibliographic information exchange between repositories, e-journals, CRIS and research infrastructures. They are a means to help content providers to comply with funders Open Access policies, e.g. the European Commission Open Access mandate in Horizon2020, and to standardize the syntax and semantics of funder/project information, open access status, links between publications and datasets. Presenters Pedro Príncipe, University of Minho, Portugal, and Jochen Schirrwagen, Bielefeld University Library, Germany, will provide an overview of the guidelines, implementation support in major platforms and tools for validation. Webinar Date: Wednesday, 1 July 2015, 10:00am-11:15am EDT (UTC 14:00 - World Clock: http://bit.ly/pprincipe). For additional information and to register, visit http://dublincore.org/resources/#2015principe.