CERN's Open Access E-print Coverage in 2006 : Three Quarters Full and Counting

CERN's open access e-print repository, CERN Document Server (CDS), contains open access full-text copies of nearly three quarters of its own recently-authored documents. As a result of retrospective scanning projects, just over half of all documents written since CERN's creation in 1954 are available. Metadata harvesting from a variety of external sources contributes to the identification of CERN-authored documents such that close to 100% are believed to be found. Full-text files are obtained through author submission, retro-scanning and upload from external sources. A growth in the numbers of metadata records and full-text files is demonstrated between 2005 and 2006 and the improvements can be linked to certain projects carried out by the Library staff. Ongoing and future projects to capture missing files include scanning projects, attempts to raise author awareness, and direct author contact.