The Cross-National Time-Series database provides internationally-comparative economic variables, including government expenditure, population, territorial size, per capita GDP, trade, infrastructure, conflict events, elections, legislative process, political measures and international status indicators. Data for 200 countries is provided from 1815 onwards. Area Data, Computer Usage Data, Domestic Conflict Event Data, Economic Data, Electoral Data, Energy Data, Highway Vehicle Data, Identification Data, Industrial and Labor Force Data, Industrial Production Data, International Status Indicators Data, Legislative Process Data, Mail Data Media Data, Military Data, National Government Revenue and Expenditure Data, Phone Data, Physician Data, Political Data, Population Data, Railroad Data, School Enrollment Data, Telegraph Data, Trade Data, Urbanization Data.

CrossAsia is an interdisciplinary portal and central access point for online information on East and Southeast Asian studies. The portal provides an integrated search of distributed databases (free and subject to licence), access to selected digital collections and an online guide of electronic resources related to East and Southeast Asian studies (OGEA). Access for Max Planck researchers is subject to a local agreement free of charge.

Current Contents Connect provides access to bibliographic information in over 8,000 scholarly journals and more than 2,000 books. CC Connect also offers access to eFirst content, which allows you to view bibliographic information from several hundred electronic journals before an issue is published in print. CC Connect provides a very convenient way to select the newest editions of your journals of interest and to browse their Tables of Contents (TOC). The following Current Contents editions are available and may be searched simultaneously or individually: * Agriculture, Biology & Environmental Sciences (ABES) * Social & Behavioral Sciences (SBS) * Clinical Medicine (CM) * Life Sciences (LS) * Physical, Chemical & Earth Sciences (PCES) * Engineering, Computing & Technology (ECT) * Arts & Humanities (AH)

DART-Europe is a partnership of research libraries and library consortia who are working together to improve global access to European research theses. The Dart-Europe E-theses Portal enables access to open access research theses from nearly 600 universities in 28 European countries.

The Data Citation Index (DCI) on the Web of Science™ platform provides a single point of access to quality research data from repositories across disciplines and around the world. DCI includes bibliographic metadata from research data in Data Studies and Data Sets from a wide range of international data repositories. Source records include three document types: Repository, Data Study, and Data Set. Each record in the product contains standard bibliographic metadata such as author, abstract, keywords, descriptor terms, and more. Records may include cited references and citing article counts. DCI covers research areas in the social sciences, physical sciences, life sciences, and humanities.

Data Europa EU is a central point of access to European open data from international, European Union, national, regional, local and geodata portals. The official portal for Euopean data consolidates the former EU Open Data Portal and the European Data Portal. Data Europa EU gives access and fosters the reuse of European open data among citizens, business and organisations. The portal promotes and supports the release of more and better-quality metadata and data by the EU’s institutions, agencies and other bodies, and European countries, enhancing the transparency of European administrations. Furthermore, it is intended to educate citizens and organisations about the opportunities that arise from the availability of open data. Currently, Data Europa EU contains more than 1.5 million European public sector datasets grouped by over 180 catalogues and pertaining to different topical categories.

"Data Services for the Social Sciences" is a department of GESIS - Leibniz Institute for the Social Sciences. Its mission is to foster FAIR data, open science and reproducible research in the quantitative and computational social sciences. To ensure that data holdings remain usable and interpretable over the long term, it offers sustainable infrastructures and services for data management, curation, and long-term preservation. ​These include archiving services with different curation levels for different needs as well as access to archived data including access to sensitive data in the GESIS Secure Data Center. The services also cover the data registration agency da|ra and training on data management for easier retrieval and re-analysis of data.

DBIS (Datenbank-Infosystem) is a web application to find scientific databases. It includes licenced and free databases for most disciplines.

DEPATISnet is a service provided to you by the German Patent and Trade Mark Office. You can conduct online searches in patent publications from around the world stored in the database of DEPATIS, the in-house patent information system of the GPTO.

The Deposit Once of the Technische Universität Berlin makes qualified scientific text documents and research data of members of the TU Berlin available online. The repository is committed to the principles of Open Access and includes parallel publications from peer-reviewed publishers (post-prints) as well as dissertations, monographs, conference proceedings, collections and other scientific treatises.

Derwent Innovations Index (DII) is a comprehensive database of international patent information, merging records from the Derwent World Patents Index® with patent citation information from the Derwent Patents Citation Index® (Derwent PCI). The index provides web access to over 14 million basic inventions and more than 20 million patents, with coverage dating back to 1963 in some technology areas. The database gives users a comprehensive overview of inventions in the global marketplace in three categories: Chemical, Engineering, and Electrical & Electronic. The bibliographic records are enriched by citation data from Derwent PCI appearing in patents from 6 major patenting authorities. Derwent DCI provides details of citations, both patent and literature, reviewed by the examiner during the examination of a patent application. Prior to May 1997, examiner and author citations were provided for 16 patent-issuing authorities. The database also contains a backfile with patent records dating back to the 1970's. Every week approximately 25,000 patent documents from more than 47 patent-issuing authorities are reviewed and value enhanced by Derwent's patent experts. In addition, every week new cited and citing references are added for approximately 45,000 records from the six major patent-issuing authorities. The resource also includes Derwent Chemical Reactions (DCR), a unique database of searchable chemical structures and other substance-based information. It is used to search for specific compounds that are indexed in Derwent World Patents Index records.

The numerical database DETHERM provides thermophysical property data, which are indispensable for construction and design of chemical apparatus, plants and processes. DETHERM contains literature values, together with bibliographical information, descriptors and abstracts. The following properties for pure compounds and for mixtures are stored: 1) phase equilibrium data, 2) vapor pressures and critical data, 3) thermodynamic properties, 4) transport properties, 5) surface tensions, 6) electrolyte data.

The current release features the English translation of Barth's magnum opus, The Church Dogmatics, in its entirety. The original German version, Die kirchliche Dogmatik, is also included as are the first 36 volumes of Barth's Gesamtausgabe, which includes hundreds of letters, sermons, lectures, conversations, and academic writings. These volumes are supplemented by seven additional German works that have not yet been published as part of the Gesamtausgabe and English translations of of thirteen important texts by Barth.

The Digital Library of the Commons (DLC) is a gateway to the international literature on the commons. The DLC provides free and open access to full-text articles, papers, and dissertations. This site contains an author-submission portal; an Image Database; the Comprehensive Bibliography of the Commons; a Keyword Thesaurus, and links to relevant reference sources on the study of the commons.

The Digital National Security Archive of the U.S.A. is a comprehensive collection of essential primary documents concerning the U.S. foreign and military policy since 1945. The database, consisting of 33 partial collections, contains more than 80,000 of the most important declassified documents. Thereby, it is about political scripts such as directives of the President, notes, and diplomatic dispatches. It is also about meeting notes, autonomous reports, briefings, communications from the White House, e-mails, confidential letters, and other secret documents. For each partial collection there is included additionally an explanatory reference part containing an introduction, a chronology, a glossary, and a bibliography. This reference part helps one to bring the material also into contextual coherencies. -- Das Digital National Security Archive der U.S.A. ist eine umfangreiche Sammlung wesentlicher Primärdokumente zur US-Außen- und Militärpolitik seit 1945. Die aus 33 Teilsammlungen bestehende Datenbank enthält über 80.000 der wichtigsten freigegebenen Dokumente. Es handelt sich dabei sowohl um politische Schriften wie Direktiven des Präsidenten, Memos, diplomatische Depeschen als auch um Sitzungsnotizen, unabhängige Berichte, Briefings, Mitteilungen aus dem Weißen Haus, Emails, vertrauliche Briefe und andere geheime Dokumente. Zu jeder Teilsammlung ist zusätzlich ein erklärender Referenzteil mit Einführung, Chronologie, Glossar und Bibliographie enthalten, der hilft, das Material auch in kontextuelle Zusammenhänge bringen.

Dimensions is a linked research knowledge system that re-imagines discovery and access to research. Developed by Digital Science in collaboration with over 100 leading research organizations around the world, Dimensions brings together grants, publications, citations, alternative metrics, clinical trials, patents and policy documents to deliver a platform that enables users to find and access the most relevant information faster, analyze the academic and broader outcomes of research, and gather insights to inform future strategy.

ProQuest Dissertations and Theses Global is the world's most comprehensive collection of dissertations and theses, covering materials back to the first U.S. dissertation, accepted in 1861, as well as to European dissertations from the 17th century. The database is the official dissertations repository for the Library of Congress, with 5.5 million bibliographic citations, 3 million full texts, 4,100 contributing institutions worldwide and 250,000 works added annually. Full-text coverage spans from 1743 to the present, with citation coverage dating back to 1637.

Dutch Pamphlets Online comprises both the complete Knuttel collection from the National Library of the Netherlands and the Van Alphen collection from Groningen University Library. The famous Knuttel collection contains some 34,000 pamphlets, to which the Van Alphen collection adds another 2,800. There is no overlap between the two. Combined, these collections form an exhaustive treasure trove of primary texts on the history of the Low Countries between 1486 and 1853.

Early American Imprints, Series I: Evans, 1639-1800 has been hailed as one of the most important collections ever produced on microform. The collection is based on the renowned American Bibliography by Charles Evans and enhanced by Roger Bristol's Supplement to Evans' American Bibliography. It serves as a foundation set for research involving early American history, literature, philosophy, religion, and more. Early American Imprints, Series I: Evans, 1639-1800 consists of more than 36,000 books, pamphlets, broadsides and other imprints. A common search interface for EAI I and EAI II is offered at: http://infoweb.newsbank.com/?db=EAIX.

Early American Imprints, Series II: Shaw/Shoemaker (1801-1819) is an essential complement to Early American Imprints, Series I: Evans (1639-1800) the definitive resource for researching 17th- and 18th-century America. The collection provides a comprehensive set of American books, pamphlets, broadsides and other imprints published in the early part of the 19th century. It is based on the noted -American Bibliography, 1801-1819- by Ralph R. Shaw and Richard H. Shoemaker and covers more than four million pages from over 36,000 items - including 1,000 catalogued new items unavailable in previous microform editions. A common search interface for EAI I and EAI II is offered at: http://infoweb.newsbank.com/?db=EAIX.