About DissOnline

The German National Library houses the largest national collection of online dissertations in Europe. We have been collecting online dissertations and theses since 1998. Since then, the collection has grown to more than 284,000 documents (as of November 2020).

Since these activities began under the aegis of DissOnline more than 20 years ago, electronic publishing has become a part of everyday university life. This is due to the close cooperation between universities, their libraries and computer centres, and representatives of academia as well as the long-standing support provided through projects funded by the German Research Foundation (DFG).

The DissOnline project was brought to a successful, sustainable conclusion. Stakeholders whose initiative had supported DissOnline then became free to transfer their commitment to other areas. In June 2012, the DissOnline advisory committee therefore decided to integrate the functions and information on the website www.dissonline.de into the German National Library’s services. This is particularly relevant in terms of the deposit of works with the German National Library. The extended metadata format XMetaDissPlus enables all types of publications and documents available in subject-specific and institutional repositories and on university servers to be deposited in just one fully automated transaction.

Deposit information

The DissOnline portal is also integrated into the German National Library's catalogue as a search option. This means that online dissertations are listed as a component of the German National Library’s collection alongside traditional printed dissertations, other online university publications and academic literature. Our catalogue offers a wide variety of search options that are constantly being developed and optimised further. You will find an explanation of all the available search options here:

Guide to searching dissertations and theses in the German National Library’s catalogue (only available in German)

In order to enhance the international visibility of the collection, the metadata for all German online dissertations is continually delivered to DART, the European portal for online dissertations. NDLTD: Networked Digital Library of Theses and Dissertations is committed to the promotion of electronic publishing in the academic sector beyond Europe. The International Symposium on Electronic Theses and Dissertations (ETD) takes place every year.

Statistical information

Online university publications have been collected, catalogued and archived at the German National Library since 1998. The illustration shows how the percentage of online publications has developed over the years since this work began. Here it must be considered that although dissertations are subject to a mandatory publication obligation and an obligation to be placed on deposit with the German National Library, only an approximate impression of doctoral and publication activities in Germany can be given.

As the statistics refer to the year in which the publication was released rather than the year in which it was deposited, it is quite possible that figures may rise in succeeding years. This applies in particular to the most recent full year.

The DissOnline projects

• 1998–2000 Dissertations Online
• 2003–2004 Establishment of a coordinating body for online university publications
• 2005–2007 DissOnline Tutor
• 2005–2008 Establishment of a portal for online university publications

The intensive cooperation between all partners and sponsors also made it possible to start collecting dissertations and theses on a voluntary basis in 1998, eight years before the amendment to the Law Regarding the German National Library and the provision stipulating the mandatory deposit of online publications.