Open Access can be delivered in two ways:
- 'Gold': where the author or author institution can pay a fee to the publisher at publication time, the publisher thereafter making the material available 'free' at the point of access (the 'gold' route).
- 'Green': where the author or author institution can self-archive at the time of submission of the publication (the 'green' route) whether the publication is grey literature (usually internal non-peer-reviewed), a peer-reviewed journal publication, a peer-reviewed conference proceedings paper or a monograph. (Please note that Open Access Self-Archiving is not self-publishing).
