The document discusses open access to scientific literature. It defines open access as digital content that is free of charge and free of most copyright and licensing restrictions. It describes the benefits of open access as maximizing research visibility, usage, and impact. There are two main ways to achieve open access: self-archiving research articles in open repositories (the "green" route) or publishing in open access journals that do not charge subscription fees (the "gold" route). The document provides an overview of tools and standards that help implement open access institutional repositories, including the Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH).
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