BASE is a multidisciplinary search engine for scholarly internet resources which have been harvested from several hundred scientific repositories. Some of the indexed resources in BASE are subject to license, while most material is free available ("open access").

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 6 million bibliographic citations, over 3,6 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.

Enhanced Electronic Grammars (EEG) features comprehensive descriptions of languages from around the world. Through this unique online resource, full grammars are made available together in an interlinked and semantically-annotated format, allowing granular access to the grammatical data and enabling cross-language research of several grammars at the same time. In addition to cross-linguistic queries, each grammar can also be read and researched individually.

This bibliographic database is the central access to the specialist information on education. In the center of the service are the specialist literature databases as well as comprehensive collections of information at the various aspects of educational science. -- Diese bibliografische Databank ist der zentrale Einstieg in die pädagogische Fachinformation. Im Mittelpunkt des Services stehen die fachlichen Literaturdatenbanken sowie umfassende Informationssammlungen zu den verschiedenen Aspekten der Erziehungswissenschaft.

FRANCIS indexes multilingual information and provides in-depth coverage of humanities and social sciences.

The GESIS search can be used to find information about social science research data and open access publications. It covers: * Research Data * Variables from questionnaires * Instruments and tools * Literature, incl. publications on research data & surveying instruments, open access publications in the social sciences, as well as literature on the topic "Women in science" * Collections of the GESIS library * GESIS webpages, incl. general information and offers on the GESIS websites

This database of the European Union (EU) contains the complete EU related terminology in all 24 official languages of the EU. -- Diese Datenbank der Europäischen Union (EU) enthält die gesamte EU-bezogene Terminologie in allen 24 EU-Amtssprachen.

Book reviews are an important element in the academic discussions. They are a tool for quality measurement with respect to the amount of publications published annually and give an indication of the importance of a published work. IBR contains over 1,16 million entries on book reviews from the years 1985ff. The database is international and interdisciplinary, over 560.000 reviews have been published in approx. 6,723 academic journals mainly in the Humanities and Social Sciences. ---- Rezensionen sind ein wichtiges Element der wissenschaftlichen Diskussion. Sie sind ein Qualitätsfilter in der jährlichen Publikationsflut und sind mitbestimmend für den Stellenwert eines Werkes. Die IBR umfasst über 1,16 Mio. Nachweise von Rezensionen aus den Jahren 1985ff. Sie weist ca. 6.723 interdisziplinäre, internationale, vornehmlich die Geistes- und Sozialwissenschaften berücksichtigende Rezensionen in wissenschaftlichen Zeitschriften zu 560.000 rezensierten Werken nach.Verbindung zum Volltext der Rezension via SFX

This database covers international publications about German history from the early days until the present. Die Datenbank erfaßt und erschließt internationale Veröffentlichungen zur deutschen Geschichte von den Anfängen bis zur Gegenwart.

LIVIVO bundles scientifically relevant resources from the subjects fields medicine, health, nutrition, environmental and agricultural sciences. It provides a common search interface over various data sources, such as library catalogs, specialist bibliographic databases, full texts from journals, and quality-controlled web content. LIVIVO combines the former ZB MED search portals MEDPILOT (2003 to 2015) and GREENPILOT (2009 to 2015).

MathSciNet is a comprehensive database covering the world's mathematical literature since 1940. It provides Web access to reviews, abstracts and bibliographic information from Mathematical Review and Current Mathematical Publications. The database contains information on over 4 million articles and books, with direct links to over 2.7 million articles in over 1,800 journals.

In OLC you have access more than 25 million articles from over 20,000 scientific periodicals beginning with the year of publication 1993. The Online Contents records are supplied by Swets and are updated daily.

Online Contents Anglistics is a subject oriented selection of bibliographic data from the Online Contents database. Currently 424 journals are being indexed back to the year of publication in 1993. -- Die Datenbank OLC Anglistik ist ein fachbezogener Auszug aus der Datenbank Online Contents. Zurzeit werden 424 Zeitschriftentitel retrospektiv bis zum Erscheinungsjahr 1993 ausgewertet. Damit enthält die Datenbank derzeit ca. 323.000 Aufsätze und Rezensionen aus dem Fachgebiet Anglistik und Amerikanistik.

Online Contents Arts and Art Sciences offers access to tables of contents of art and art related journals. It is a subject oriented selection of bibliographic data from the Online Contents database. It is regularly enhanced by table of contents data from additional periodicals out of the special collections of the State and University Library (SLUB) Dresden and the University Library Heidelberg.

OLC Chemistry is a subject oriented selection of bibliographic data from the Database Online Contents. This database is regularly enhanced by table of contents data from additional periodicals out of the special collections of TIB Hannover.

Online Contents Classics provides access to the tables of contents of journals in the field of classical studies, especially Greek and Latin Philology, Prehistory, Early History, Ancient History and Archaeology, Egyptology. It is a subject-oriented selection of bibliographic data from the Database Online Contents. This database is regularly enhanced by table of contents data from additional periodicals out of the special collections of the University Library Heidelberg as German central subject library for Archaeology and Egyptology and of the Bayerische Staatsbibliothek, as German central subject library for Greek and Latin Philology and Ancient History.

The creation and improvement of the Online Contents Contemporary History database was supported by the Deutsche Forschungsgemeinschaft within the framework of the Clio-online network and the Internet portal Zeitgeschichte-online until 2008. The further development of the database is co-ordinated by the Staatsbibliothek zu Berlin - Preußischer Kulturbesitz (SBB-PK) in cooperation with the Research Centre for Contemporary History in Potsdam, the Lower Saxon State and University Library Göttingen, the German central subject library for Anglo-American history, the Bayerische Staatsbibliothek (BSB; Bavarian State Library), the German central subject library for General History; History of Germany, Austria, Switzerland, France and Italy, East-European History, the Bibliothek für Zeitgeschichte in der Württembergischen Landesbibliothek Stuttgart as special library for the contemporary history and the library of the Stiftung Topographie des Terrors (Foundation Topography of Terror Berlin).

OLC East European Studies is a selection of bibliographic data from the Online Contents database which is supplemented weekly by additional data provided by a number of German libraries. The OLC Slavistics, which is maintained by the Berlin State Library - Prussian Cultural Heritage (SBB-PK) is contained in this selection. The creation and improvement of the Online Contents East European Studies database is currently supported by the Deutsche Forschungsgemeinschaft within the framework of the Virtual Library Eastern Europe (ViFaOst). The development of the database is coordinated by the Bayerische Staatsbibliothek (BSB) Munich and the Staatsbibliothek zu Berlin - Preußischer Kulturbesitz (SBB-PK).

OLC Economic Sciences is a subject oriented selection of bibliographic data from the Online Contents database that is regularly enhanced by table of contents data from 3,150 additional periodicals with more than 4,500,000 records of articles out of the special collections of the ZBW – Leibniz-Informationszentrum Wirtschaft and the university library of the Helmut Schmidt university, Federal Armed Forces, Hamburg.

Online Contents Educational Sciences provides access to the tables of contents of journals in the field of educational sciences. It is a subject-oriented selection of bibliographic data from the Online Contents database. This database is regularly enhanced by table of contents data from additional periodicals out of the special collections of the UB Erlangen-Nürnberg as German central subject library for Educational Sciences. It covers journal articles and reviews about various pedagogical disciplines, including home and foreign educational system, early childhood and preschool education, school and special school types, curriculum, teaching and teacher education, special needs education, vocational education.

The database OLC Environment is a subject oriented selection of bibliographic data from the Online Contents database that is regularly enhanced by table of contents data from additional periodicals out of the special collections of the TIB Hannover, the central subject library of Germany for technology and their related subjects, especially chemistry, computer science, mathematics and physics. Currently 514 journals are being indexed back to the year of publication in 1993.

OLC German language and literature studies is a subject oriented selection of bibliographic data from the Online Contents database and provides access to the tables of contents of journals in the field of German Studies. Currently 139 journals are being indexed, normally back to the publication year 1993. -- Die Datenbank OLC Germanistik ist ein fachbezogener Auszug aus der Datenbank Online Contents und erschließt Inhaltsverzeichnisse von Zeitschriften aus dem Bereich "Deutsche Sprache und Literatur". Zurzeit werden 139 Zeitschriften ausgewertet, in der Regel ab dem Erscheinungsjahr 1993. Damit enthält die täglich aktualisierte Datenbank gegenwärtig über 197.000 Aufsätze und Rezensionen (Stand: September 2019).

The database OLC History is a subject-oriented selection of bibliographic data from the Online Contents database which is supplemented weekly by additional data provided by a number of German libraries. The creation and improvement of the Online Contents History database is currently supported by the Deutsche Forschungsgemeinschaft within the framework of the Clio-online network. The development of the database is coordinated by the Staatsbibliothek zu Berlin - Preußischer Kulturbesitz (SBB-PK) in cooperation with the Bayerische Staatsbibliothek (BSB; Bavarian State Library) Munich, the German central subject library for General History; Prehistory and Early History; Ancient history; History of Germany, Austria, Switzerland, France and Italy, East-European History. The database, which is updated weekly, contains the contents of about 1,100 journals, usually beginning with articles published in 1993.

The database OLC Ibero-America, Spain and Portugal is a regional related section from the Online Contents database that is constantly being completed with the addition of selected journals from the competent Libraries, the Library of the Ibero-American Institute Prussian Cultural Heritage (Ibero-America and the Caribbean) and the state and university library SUB Hamburg (Spain and Portugal). Currently more than 1.400 journals are being indexed. Gradually earlier editions of these journals will also be made accessible.

The multidisciplinary database OLC International Relations and Area Studies contains table of contents of journals from several special subject collections, including political science, economics, the Middle East and other regional special subject collections. It offers a multidisciplinary selection from the Online Contents database, with additional input from other special subject collections. The International Relations and Area Studies section currently covers approximately 797 journals.

Online Contents Law is a subject-based selection of bibliographic data from the database Online Contents. The improvement of the Online Contents Law database is supported by the Deutsche Forschungsgemeinschaft (German Research Foundation) - from 2006 - within Internet portal Virtuelle Fachbibliothek Recht (Virtual Library Law). The further development of the database is coordinated by the Sondersammelgebiet Rechtswissenschaft (Special Collection Law) of the Staatsbibliothek zu Berlin - Preußischer Kulturbesitz (Berlin State Library - Prussian Cultural Heritage). 88 journals cover the ibero-american law and are part of the Online Contents - SSG Ibero-America.

The database OLC Mathematics and Informatics is a subject oriented selection of bibliographic data from the Online Contents database that is regularly enhanced by table of contents data from additional periodicals out of the special collections of the TIB Hannover. Currently 1,357 journals are being indexed back to the year of publication in 1993.

The database OLC Pharmacy is a subject oriented selection of bibliographic data from the Online Contents database that is regularly enhanced by table of contents data from additional periodicals out of the special collections of the UB Braunschweig, the central subject library of Germany for pharmacy.

The database OLC Physics is a subject oriented selection of bibliographic data from the Online Contents database that is regularly enhanced by table of contents data from additional periodicals out of the special collections of the TIB Hannover, the central subject library of Germany for technology and their related subjects, especially chemistry, computer sciences, mathematics and physics.

The Online Contents service of the Special Subject Collection Political Science and Peace Research is part of the Online Contents database. It offers access to tables of contents of more than 870 journals relevant for study and research. New journals were added until December 2013 by the Special Subject Collection. Thus the database contains approximately 1.478,600 records of journal articles and reviews.

OLC Psychology is a subject oriented selection of bibliographic data from the Online Contents database. This database is regularly enhanced by table of contents data from additional periodicals out of the special collections of the Saarland University and State Library (SULB) Saarbrücken, the central subject library for Psychology in Germany. Currently 878 journals are being indexed back to the year of publication in 1993.

Online Contents Social Sciences provides access to the tables of contents of journals in the field of sociology and social policy. It is a subject-oriented selection of bibliographic data from the Database Online Contents. The database is regularly enhanced by table of contents data from additional periodicals out of the special collections of the University Library Cologne.

OLC Technology is a subject oriented selection of bibliographic data from the Online Contents database that is regularly enhanced by table of contents data from additional periodicals out of the special collections of the TIB Hannover, the central subject library of Germany for technology and their related subjects, especially chemistry, computer science, mathematics and physics. Currently 2,393 journals are being indexed back to the year of publication in 1993.

"Psyndex - Literature & Audiovisual Media" contains records on psychology from researchers in Germany, Austria, and Switzerland. Compiled by the German Center for Documentation and Information in Psychology at the University of Trier (ZPID), this database covers German and English journal articles, books, chapters, reports, dissertations as well as audiovisual media. The database is bilingual: titles and descriptors are in German and English. German publications are abstracted in German; English publications in English. The database is indexed with the Thesaurus of Psychological Index Terms by permission of the American Psychological Association. A bilingual thesaurus is included with the database.

PubPsych is a free information retrieval system for psychological resources, aiming to enhance the visibility of European and international psychological literature. It offers a comprehensive and balanced selection of resources from a growing number of international databases with a European focus, covering the needs of academic and professional psychologists. PubPsych includes more than 850,000 datasets and offers, where available, full-text linking, links to additional information and link resolving. Databases included: * PSYNDEX * PASCAL * ISOC-Psicología * MEDLINE® * ERIC * NARCIS * NORART * PsychOpen * PsychData

The RISM database references mostly historical music manuscripts, the majority of them originated before 1800. - The original sources are available from the libraries, music archives, and private collections as indicated in the RISM database. These institutions can often be approached for reproductions. - About 700,000 entries (June 2010). -- Die RISM-Datenbank weist hin auf vor allem historische handschriftliche Noten, die Mehrzahl davon entstanden vor 1800. - Die Originale können in den angegebenen Bibliotheken, Musikarchiven oder Privatsammlungen eingesehen werden. Dort können oft auch Reproduktionen herstellen gelassen werden. - Ca. 700.000 Einträge (Juni 2010).

SSOAR collects electronic full texts from the domain of the Social Sciences and makes these texts available according to the Berlin Declaration on Open Access to Scientific Knowledge.

References within the fields of business, economics, credit management and ergonomics are searchable via a single interface. An overview of included resources is available via https://www.wiso-net.de/sourceInformation/categoryNavigation?searchId=%3A3%3AWIR....

German-language literature and research projects in the field of social sciences as well as the database World Affairs Online with literature on international relations. An overview of included resources is available via https://www.wiso-net.de/sourceInformation/categoryNavigation?searchId=%3A3%3ASOZ....

zbMATH Open (formerly known as Zentralblatt MATH) is the world's most complete and longest running abstracting and reviewing service in pure and applied mathematics. The MATH Database contains several million entries drawn from more than 3,500 serials and journals, and more than 1,100 book series and monographs. The entries are classified according to the Mathematics Subject Classification Scheme (MSC 2000).

This database contains references to 185.858 articles of educational relevance from domestic and foreign journals and newsletters. All education areas are covered: kindergarten, school, job training, academy, further training, discussions and decisions of matters of education policy. The database was concluded on 30 April 2015 and is no longer updated, but the archive is still available for document ordering. -- In dieser Datenbank sind 185.858 bildungsrelevante Artikel aus in- und ausländischen Zeitungen und Newslettern nachgewiesen und mit Schlagwörtern erschlossen. Dabei werden alle Bildungsbereiche - vom Kindergarten über Schule, Berufliche Bildung, Hochschule, Weiterbildung bis hin zu bildungspolitischen Diskussionen und Entscheidungen - abgedeckt. Die Datenbank wurde am 30.04.2015 abgeschlossen und wird nicht mehr aktualisiert. Das Archiv steht weiterhin für Kopienbestellungen zur Verfügung.