e-books and reference works, many hundreds of millions of journal articles, its digital special collections and repository materials. These digital information resources are available worldwide to Leiden University students and staff. The special collections and archives of Leiden University (see below) are increasingly made available through the library's Catalogue and Digital Collections environment. The library supports researchers from Leiden University through its Centre for Digital Scholarship which focuses on open access, copyright, data management, text and data mining and virtual research environments. The library makes all doctoral dissertations available online through the Catalogue and Leiden University Scholarly Publications that functions according to the open access principles. Furthermore, publications from Leiden researchers are increasingly made available through the same repository. Thanks to the use of international standards, among others the Open Archives Initiative, the repository is visited daily by general and specialized search engines that harvest and index this information. In 2007, the library started with an ambitious program to renew and renovate its facilities: wireless access became available throughout the library in December 2007, in March 2008 the completely renovated Special Collections Reading Room Dousa was reopened, in June 2008 the fire protection systems installed in the closed stacks and the vaults of the library were taken into use, in December 2008 library patrons were able to make use of the new facilities created in the renovated Information Centre Huygens, and a new exhibition space was opened on 25 March 2010, in the direct vicinity of a completely renovated entrance. In 2012–2013 the study areas (the complete first floor and parts of the second floor) of the University Library were renovated and a media centre was opened. Since 1 June 2009, the Leiden libraries form one organization: Leiden University Libraries (UBL). Leiden University Libraries has a number of locations: the University Library, the libraries of Social and Behavioral Sciences, Law, Mathematics and Natural Sciences and the East Asian Library. The collections of the former Archeology, Art History and Kern libraries are available at the University Library. On 3 September 2012, a Library Learning Centre was opened on the university's The Hague campus. Leiden University Libraries took over in 2013 the colonial collections including the entire map collections (colonial and modern) of the Royal Tropical Institute (KIT) and in 2014 the complete collection of the Royal Netherlands Institute of Southeast Asian and Caribbean Studies (KITLV). By bringing these collections together with