• Cornell University (USA)
• Oxford Digital Library (UK)
• GPNTB Moskau (RUS)
• BNF Paris (FRA)
• Tsinghua University Library (CN)
• Library of Congress (USA)
• Kassel University (GER)
• Munich Center for Digitization (GER)
• TU Berlin (GER)
• TIB Hannover (GER)

The digitizing projects are often conceived, requested and conducted in close collaboration with experts.

For example the digitizing of the mathematical collections is associated with major specialist coherences and is carried out in close collaboration with Prof. Dr. Bernd Wegner (TU Berlin), Editor-in-Chief of the Zentralblatt für Mathematik. The digitized data are linked to data of the Jahrbuch über die Fortschritte der Mathematik that was recorded in SQML within the project and was completed to a database which can be researched together with the Zentralblatt der Mathematik, the department organ of mathematics. So indexing and retrieval of mathematic literature are improved considerably - above all the expert access is advanced essentially.

The results of the German-American cooperation project  „The Development of a Distributed Library of Mathematical Monographs“ allow for the first time the full text search in a considerable number of mathematical monographs out of distributed repositories with completely different platforms over a common protocol. The American partners provide full text search to their supply while Goettingen is integrated by metadata. The search in the full text of the digitized data is implemented only exemplarily so far. But the production and integration of further full text materials is projected, the suitable enabling technology for this offer is created. Also in the domain of history of science the expert community is integrated directly into the project. For example an extended access functionality could be developed on the basis of Pierre Joseph Macquer‘s Dictionnaire de Chimie thereby. The reference book is digitally available as a French as well as a German edition, a multilingual access will be enabled. A search in the headwords of the different editions shows a hit list of the results with their counterpart of the other edition; out of this hit list the user finds the corresponding digitized data of all editions. So not only a comparison of these editions with their changes and developments is possible but also the research of terminologies, i. e. the development of the special language of chemistry, is made a lot easier.

A very close contact between special branch of science and library, between current research and maintenance is reached in the project ‚Early Zoological Literature Online‘ (EZOOLO). It is carried out in cooperation with the digital zoological library of the University of Goettingen, Prof. Rainer Willmann, and aims several objectives. Core of the project is the basic work Systematics of Species written by Carl von Linné in which he established the rules that are still valid today for the zoological nomenclature. After the image recording a full text recording is done applying the Double Keying method with automated matching. First the names of the species are extracted and transferred to a zoological data base. This data base acts as a tool for the current research because of the so-called priority rule which says that describing a new species one has to revert to older descriptions and nomenclature. Furthermore bibliographic data and references of Linné are opened up and marked. The for him relevant works are digitized as images and are linked with the information of the data base. Thus a comprehensive information system for the historic zoology is generated that is of vital importance beyond the historic research interest for the contemporary science community. It is characteristic for the quality of the historic stocks of the SUB that literature which had been used by Linné is available almost completely. In addition more linking possibilities arise: the basic works of Linné were often quoted by Johann Georg Krünitz in his Ökonomische Enzyklopädie which is currently digitized by the University Library of Trier. As also the bibliographic data are marked out here the direct linking is possible. Thereby the project ‚Early Zoological Literature Online‘ shows exemplary how preservation and indexing of stock as well as expert research and interdisciplinary networking can go together cooperatively and achieve the "distributed digital research library".