Als historisch-biographische Lexika sind die ADB (55 Bände und ein Register, 1875-1912) und die NDB (23 Bände, seit 1953) erstrangige Informationsmittel zu ca. 90.000 Personen, die im deutschsprachigen Raum in herausragender Weise wirksam waren. Vom Mittelalter bis zur Gegenwart werden alle Bereiche des öffentlichen, wissenschaftlichen, wirtschaftlichen und kulturellen Lebens berücksichtigt.

The Bibliography of the History of Art (BHA) contains abstracts and indexes of current publications in the history of art, including scholarly journals, conferences, book, exhibition reviews, and exhibition catalogues. The records consist of bibliographic citations, abstracts, and indexing. Note that the database search includes BHA, covering 1990-2007, the International Bibliography of Art (IBA), covering the years 2008 and part of 2009, and the Répertoire de la litterature de l'art (RILA), one of the predecessors of BHA, with records that cover 1975–1989.

Das Biographisch-Bibliographische Kirchenlexikon (BBKL) ist ein biographisches Nachschlagewerk zur Kirchengeschichte, begründet 1975 von Friedrich Wilhelm Bautz. Mit über 20.000 Artikeln, die sowohl von renommierten Wissenschaftlern als auch von interessierten Laien verfasst wurden, gilt das BBKL als sehr aktuelle und umfangreiche biographische Informationsquelle zu Personen der Kirchen-, aber auch der Philosophiegeschichte. Nur der auf knappe Kurzinformationen beschränkte biografische Teil der BBKL ist kostenfrei zugänglich, der Rest ist lizenzpflichtig.

Bloomsbury History: Theory and Method is an educational digital resource dedicated to historiography and the examination of historical theory and methods using a global approach. Currently included are 100 exclusive articles by authors based in 25 different countries, a 4-volume major reference work on the global history of historiography and more than 60 eBooks.

Book Citation Index--Science (BKCI-S) and Social Sciences & Humanities (BKCI-SSH) The Book Citation Index is a multidisciplinary index to the literature of the sciences, social sciences, and humanities. Database Coverage: 2005 (copyright year) to the present

The platform provides access to Brill's reference works, including: * Brill's New Pauly and Der Neue Pauly have become a recognized standard reference work for students and scholars of the ancient world. Now, the complete original Der Neue Pauly together with Brill’s New Pauly are offered online. New Pauly Online will allow the researcher to have the most complete database available. New Pauly Online is automatically updated whenever a new volume is published. * The Encyclopedia of Islam (New Edition) sets out the present state of our knowledge of the Islamic World. It is a unique and invaluable reference tool, an essential key to understanding the world of Islam, and the authoritative source not only on the religion, but also on the believers and the countries in which they live. * Lexicon Gregorianum Online is the most comprehensive Greek-German dictionary of the language used by Gregory of Nyssa. It is the only dictionary available specifically addressing the vocabulary of late Classical Greek. It documents Gregory's complete vocabulary, taking account of the syntax, meaning and connotations of every occurrence of a key word in his writings. Further reference works may be available due to local subscription.

Brill Scholarly Editions is a text edition platform, providing access to selected Brill's reference works, including: * The Coptic Gnostic Library Online continues where the Dead Sea Scrolls left off. The main sources of information for the Gnostic religion are the so-called Nag Hammadi codices, written in Coptic. * Gregorii Nysseni Opera Online is the ultimate online critical text edition of Gregory of Nyssa's works based on all available known manuscripts, introduced with a complete discussion of the textual transmission and accompanied by extensive annotations on the biblical, classical and patristic sources, and indices. The platform provides interactive reading of text editions supported by critical editions, facsimiles, translations, commentaries, and is designed to display parallel texts side by side.

The online edition of Dictionary of German Biography (DBE) provides information about people from all aspects of public life: men and women from the entire German-speaking area, from the time of the very earliest written records right up to the present. The biographies inform the reader about a person's origins, education, influential encounters, professional development, places of influence, significant works and achievements, friendships and relationships, membership of groups and associations, reception and, in special cases, prizes and honours. To be able to evaluate the life and work of a person in its completeness, DBE only contains people who are already dead. Dictionary of German Biography Online contains all articles from the second book edition of DBE.

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.

Die Datenbank weist historische Bücher nach, die in Deutschland oder im deutschsprachigen Ausland erschienen sind. Darüber hinaus umfasst sie deutsch- und fremdsprachige Aufsätze aus Zeitschriften und Sammelwerken (Kongress- und Festschriften etc.) sowie andere historische Veröffentlichungen. Hinzu kommen Einträge aus dem "Jahrbuch der historischen Forschung", das sich auf laufende Forschungsarbeiten bezieht. The database establishes historic books published in Germany or in the German-speaking abroad. Moreover, it covers German- and foreign language-speaking papers from journals and collected editions (congress papers and commemorative publications) as well as other historic publications. Added to this are records from the "Jahrbuch der historischen Forschung", which refers to current research work.

The International Encyclopedia of the Social & Behavioral Sciences offers a source of social and behavioral sciences reference material. It comprises over 3,900 articles, commissioned by 71 Section Editors, and includes 90,000 bibliographic references as well as comprehensive name and subject indexes.

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.

The KCI Korean Journal Database provides a comprehensive snapshot of the most influential regional content from researchers in South Korea. Using citation connections from the Web of Science™, regional work is framed within the broader context of global research. Created in collaboration with the National Research Foundation of Korea, this database covers articles from approximately 2,000 scholarly journals (over 1,500 new to the Web of Science).

Online-Ausgabe von Kürschners Deutschem Gelehrten-Kalender, die immer auf dem aktuellen Stand gehalten wird und die gezielte Suche nach Kriterien wie z.B. dem Fachgebiet ermöglicht. Zusätzlich zur gedruckten Ausgabe sind Angaben zu ca. 8.800 Personen, die seit 1996 als verstorben ermittelt wurden.

LexiQamus is a reference work and online tool for identifying and analyzing illegible words from Ottoman-Turkish texts. It can even be used to search for the recognisable parts of a word. Based on over 170,000 words and phrases from 19 different dictionaries, LexiQamus comprises the entries of the reference work "A Turkish and English lexicon" (1890) by James Redhouse and all content from the website osmanlicasozlukler.com which collects entries from Ottoman dictionaries.

Die Österreichische Historische Bibliographie (ÖHB) ist eine Literaturdokumentation, die am Institut für Geschichte an der Universität Klagenfurt durchgeführt und automationsunterstützt bearbeitet wird. Die ÖHB verzeichnet die Publikationen der österreichischen Geschichtsforschung, soweit sie in Österreich erschienen sind. Beginnend mit dem Berichtsjahr 1945 sind Monographien, Reihenwerke, Artikel aus Festschriften, Sammelwerken, Zeitschriften und Periodika, Kongress- und Tagungsbänden, Aufsatzsammlungen und Katalogen sowie Diplomarbeiten, Dissertationen und Habilitationsschriften, aber auch Sach- und Personalbibliographien zu historischen Themen verzeichnet und sachlich erschlossen.

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).

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.