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Citation Databases
Databases
Encyclopaedias and Biographical Directories
Full Texts
Journals and Newspapers
Law
Library Catalogues
Official Documents
Research Information
Search Engines
Statistics
Subject Gateways and Digital Libraries


Citation Databases


Apart from using the Web of Science citation index, the following citation databases are available, free of charge, to do a targeted search for citations:

Google Scholar
Academically-oriented search engine and citation databank. As well as citation verification, a search gives you bibliographic information, links to full texts, text excerpts, abstracts and related literature. The citation verification indicates where and how often the requested literature has been cited. The advanced search allows you to search by author.

Harzing's Publish or Perish
This is a software program for retrieving and analyzing academic citations, using Google Scholar. You can download the Windows version of the program here.

Scirus
The world's largest search engine for scientific information. Apart from scientific documents and web pages, references are also collected so that citations can be verified. The advanced search allows you to more detailed request.




Databases
Directory of scientific databases (DBIS)
Directory of free and licensed scientific databases. There are currently more than 6,092 entries, around 2,067 databases are available free of charge on the internet. The entries are sorted by subjects. Among other specifications, the advanced search (Erweiterte Suche) allows you to search by keywords.

National licences for databases
Since 2004 the DFG (German Research Foundation) has financed national licences for databases, digital collections and electronic journals in order to improve access to electronic resources for German universities, research establishments and research libraries.

The following products have been included in the WZB electronic library collection:

America's Historical Newspapers
American Antiquarian Society (AAS) Historical Periodicals Collection / Series 1
Annual Reviews Electronic Back Volume Collection 1932-2002ff
Berkeley Electronic Press Academic Journals (Bepress)
Biological Abstracts Archive 1969-2004
Blackwell Publishing Journal Backfiles
BMJ Journals Online Collection
British Periodicals
Cambridge Journals Digital Archive
Central and Eastern European Online Library
Columbia International Affairs Online CIAO
Comintern Electronic Archives
CSA Sozialwissenschaftliche Datenbanken 1999-2009
De Gruyter Reference Global / Walter de Gruyter Archiv
Declassified Documents Reference System/DDRS
Digital National Security Archive/DNSA
(The) Economist - Historical Archive
Editoria Italiana Online / Monografie
Editoria Italiana Online / Periodici
EHRAF World Cultures
Eighteen Century Collection Online
Eighteen Century Journals
EIU Country Reports Archive
Elsevier Journal Backfiles on ScienceDirect 1907-2002
Emerald Fulltext Archive Database 1994-2005
Empire Online
Entscheidungssammlungen der Entscheidungen des Reichsgerichts in Zivilsachen (RGZ) und der Entscheidungen des Reichsgerichts in Strafsachen (RGSt)
Gerritsen Collection, The, Women's History Online
Historical Newspapers, ProQuest
House of Commons Parliamentary Papers
Informa Healthcare Digital Archive
Integrum World Wide
Karger Journals / Karger Journals Archiv
Kluwer Law International Journals
Macmillan Cabinet Papers 1957-1963
(The) Making of Modern Law/MOML 1, Legal treatises
(The) Making of Modern Law/MOML 2, U.S. supreme courts records and briefs
(The) Making of Modern Law/MOML 3, Trials 1600-1926
(The) Making of the Modern World: economics, politics and industry
Middle East Online, The / Series 1, Arab-Israeli Relations 1917 - 1970
Middle East Online, The / Series 2, Iraq 1914 - 1974
(The) Nation Digital Archive
Nature
19th Century British Library Newspapers
19th Century U.S. Newspapers
Ovid Journals A-Z / Lippincott Williams & Wilkins "LWW Legacy Archive"
Oxford Journals Digital Archive 1849 -
Periodicals Archive Online/PAO 1802-1995
Periodicals Index Online/PIO 1770-1995
Post-War Europe: Refugees, Exile and Resettlement 1945 - 1950
Sage Journals Online 1879 -
Science Classic Archiv
17th - 18th Century Burney Collection Newspapers
Social Sciences & Humanities (UDB-EDU)
Springer eBook Collection / Medicine 2005 - 2008
Springer Online Journal Archives 1860-2001
Taylor & Francis Online Archive 1799-2000
Thieme-connect/Thieme Zeitschriftenarchive
Times Literary Supplement Centenary Archive/TLS
Trans Tech Publications Archive
U.S. Congressional Serial Set
Wiley InterScience Backfile Collection 1832-2000
World Biographical Information System/WBIS

Many of these resources are available to individuals as well. Residents of the Federal Republic of Germany may register themselves at www.nationallizenzen.de for free access.



Encyclopaedias and Biographical Directories

50 Klassiker der Soziologie
The Internet Lexikon contents infomation on the life and work of world-famous sociologists, and selected links for further information. The Internet Lexicon is provided by the "Archiv für die Geschichte der Soziologie in Österreich".

Famous Sociologists
Free of charge access to information on the life and work of world-famous sociologist. The website is part of the Social Science Information System SocioSite based at the University of Amsterdam.



Full Texts

BASE - Bielefeld Academic Search Engine
A multidisciplinary, scientific search engine for bibliographical data of document servers worldwide, selected web sites and local data collections. In some cases, BASE allows a full-text search.

EU Publications
EU Bookshop is an online service giving access to the publications of the institutions and other bodies of the European Union. A lot is offered free of charge. Many publications are available in PDF format.

Nationallizenzen für elektronische Medien
Since 2004 the DFG (German Research Foundation) is financing national licences for databases, digital collections and electronic journals in order to improve access to electronic resources for German universities, research establishments and research libraries.

The WZB library included the following products into its collection of electronic resources:

America's Historical Newspapers
American Antiquarian Society (AAS) Historical Periodicals Collection / Series 1
Annual Reviews Electronic Back Volume Collection 1932-2002ff
Berkeley Electronic Press Academic Journals (Bepress)
Biological Abstracts Archive 1969-2004
Blackwell Publishing Journal Backfiles
BMJ Journals Online Collection
British Periodicals
Cambridge Journals Digital Archive
Central and European Online Library
Columbia International Affairs Online CIAO
Comintern Electronic Archives
CSA Sozialwissenschaftliche Datenbanken 1999-2009
De Gruyter Reference Global / Walter de Gruyter Archiv
Declassified Documents Reference System/DDRS
Digital National Security Archive/DNSA
(The) Economist - Historical Archive
Editoria Italiana Online / Monografie
Editoria Italiana Online / Periodici
EHRAF World Cultures
Eighteen Century Collection Online
Eighteen Century Journals
EIU Country Reports Archive
Elsevier Journal Backfiles on ScienceDirect 1907-2002
Emerald Fulltext Archive Database 1994-2005
Empire Online
Entscheidungssammlungen der Entscheidungen des Reichsgerichts in Zivilsachen (RGZ) und der Entscheidungen des Reichsgerichts in Strafsachen (RGSt)
Gerritsen Collection, The, Women's History Online
Historical Newspapers, ProQuest
House of Commons Parliamentary Papers
Informa Healthcare Digital Archive
Integrum World Wide
Karger Journals / Karger Journals Archiv
Kluwer Law International Journals
Macmillan Cabinet Papers 1957-1963
(The) Making of Modern Law/MOML 1, Legal treatises
(The) Making of Modern Law/MOML 2, U.S. supreme courts records and briefs
(The) Making of Modern Law/MOML 3, Trials 1600-1926
(The) Making of the Modern World: economics, politics and industry
Middle East Online, The / Series 1, Arab-Israeli Relations 1917 - 1970
Middle East Online, The / Series 2, Iraq 1914 - 1974
(The) Nation Digital Archive
Nature
19th Century British Library Newspapers
19th Century U.S. Newspapers
Ovid Journals A-Z / Lippincott Williams & Wilkins "LWW Legacy Archive"
Oxford Journals Digital Archive 1849 -
Periodicals Archive Online/PAO 1802-1995
Periodicals Index Online/PIO 1770-1995
Post-War Europe: Refugees, Exile and Resettlement 1945 - 1950
Sage Journals Online 1879 -
Science Classic Archiv
17th - 18th Century Burney Collection Newspapers
Social Sciences & Humanities (UDB-EDU)
Springer eBook Collection / Medicine 2005 - 2008
Springer Online Journal Archives 1860-2001
Taylor & Francis Online Archive 1799-2000
Thieme-connect/Thieme Zeitschriftenarchive
Times Literary Supplement Centenary Archive/TLS
Trans Tech Publications Archive
U.S. Congressional Serial Set
Wiley InterScience Backfile Collection 1832-2000
World Biographical Information System/WBIS

Many of these resources are available to individuals as well. Residents of the Federal Republic of Germany may register themselves at www.nationallizenzen.de for free access.

SSOAR - Social Science Open Access Repository
SSOAR provides social science publications, for free, available with full texts. Its goal is to implement the "green road" to open access by providing users with free electronic access to pre-prints and post-prints of publications.

Wikisource
Wikisource collects and stores in digital format previously published texts; including novels, non-fiction works, letters, speeches, constitutional and historical documents, laws and a range of other documents. All texts collected are either free of copyright or released under a free license. Wikisource is provided by the Wikimedia Foundation.



Journals and Newspapers


Directory of Open Access Journals (DOAJ)
Directory of 4,350 free, full text, quality controlled scientific and scholarly journals of all subjects.

Electronic Journals Library (EZB)
Offers an effective use of scientific and academic journals publishing full text articles on the Internet. Almost 29,000 titles covering all subjects. Full text accessibility is indicated through dots in different colors. Over 12,500 journals are freely accessible and marked with a green dot. A yellow dot points out the WZB subscriptions.

IngentaConnect

IngentaConnect offers one of the most comprehensive collections of academic and professional research articles online - some 21 million articles from 30,000 publications. To enlarge the data stock available for searching select the Fax/Ariel content button.

National licences for databases
Since 2004 the DFG (German Research Foundation) is financing national licences for databases, digital collections and electronic journals in order to improve access to electronic resources for German universities, research establishments and research libraries.

The WZB library included the following products into its collection of electronic resources:

America's Historical Newspapers
American Antiquarian Society (AAS) Historical Periodicals Collection / Series 1
Annual Reviews Electronic Back Volume Collection 1932-2002ff

Berkeley Electronic Press Academic Journals (Bepress)
Biological Abstracts Archive 1969-2004
Blackwell Publishing Journal Backfiles
BMJ Journals Online Collection
British Periodicals
Cambridge Journals Digital Archive
Central and European Online Library
Columbia International Affairs Online CIAO
Comintern Electronic Archives
CSA Sozialwissenschaftliche Datenbanken 1999-2009
De Gruyter Reference Global / Walter de Gruyter Archiv
Declassified Documents Reference System/DDRS
Digital National Security Archive/DNSA
(The) Economist - Historical Archive
Editoria Italiana Online / Monografie
Editoria Italiana Online / Periodici
EHRAF World Cultures
Eighteen Century Collection Online
Eighteen Century Journals
EIU Country Reports Archive
Elsevier Journal Backfiles on ScienceDirect 1907-2002
Emerald Fulltext Archive Database 1994-2005
Empire Online
Entscheidungssammlungen der Entscheidungen des Reichsgerichts in Zivilsachen (RGZ) und der Entscheidungen des Reichsgerichts in Strafsachen (RGSt)
Gerritsen Collection, The, Women's History Online
Historical Newspapers, ProQuest
House of Commons Parliamentary Papers
Informa Healthcare Digital Archive
Integrum World Wide
Karger Journals / Karger Journals Archiv
Kluwer Law International Journals
Macmillan Cabinet Papers 1957-1963
(The) Making of Modern Law/MOML 1, Legal treatises
(The) Making of Modern Law/MOML 2, U.S. supreme courts records and briefs
(The) Making of Modern Law/MOML 3, Trials 1600-1926
(The) Making of the Modern World: economics, politics and industry
Middle East Online, The / Series 1, Arab-Israeli Relations 1917 - 1970
Middle East Online, The / Series 2, Iraq 1914 - 1974
(The) Nation Digital Archive
Nature
19th Century British Library Newspapers
19th Century U.S. Newspapers
Ovid Journals A-Z / Lippincott Williams & Wilkins "LWW Legacy Archive"
Oxford Journals Digital Archive 1849 -
Periodicals Archive Online/PAO 1802-1995
Periodicals Index Online/PIO 1770-1995
Post-War Europe: Refugees, Exile and Resettlement 1945 - 1950
Sage Journals Online 1879 -
Science Classic Archiv
17th - 18th Century Burney Collection Newspapers
Social Sciences & Humanities (UDB-EDU)
Springer eBook Collection / Medicine 2005 - 2008
Springer Online Journal Archives 1860-2001
Taylor & Francis Online Archive 1799-2000
Thieme-connect/Thieme Zeitschriftenarchive
Times Literary Supplement Centenary Archive/TLS
Trans Tech Publications Archive
U.S. Congressional Serial Set
Wiley InterScience Backfile Collection 1832-2000
World Biographical Information System/WBIS

Many of these resources are available to individuals as well. Residents of the Federal Republic of Germany may register themselves at www.nationallizenzen.de for free access.

Trivium - Deutsch-französische Zeitschrift für Geistes- und Sozialwissenschaften
Trivium presents itself as a medium for exchange and cooperation between the German and French research communities in humanities and social sciences. The Franco-German online magazine, available three times a year, publishes relevant German articles in French and, vice versa, relevant French articles in German.

Union Catalogue of Serials (ZDB)
The world's largest specialized database for serial titles: journals, annuals, newspapers etc. The ZDB presently contains more than 1,2 million bibliographic records of serials from the 16th century onwards, in all languages and with holdings information. It does not contain journal articles.

Wikisource Journals
List of journals in German language  available in digital format on the Internet. It is provided by the Wikimedia Foundation.



Law


EUR-Lex - The access to European Union law
Free access to European Union law. The system makes it possible to consult the Official Journal of the European Union and it includes inter alia the treaties, legislation, case-law and legislative proposals.

German Federal Law
Provided by the Federal Ministry of Justice and juris GmbH.

Virtual Library for Law

Access point for Internet information about law. Provided by the Staatsbibliothek zu Berlin.



Library Catalogues


BiDok - The Library and Documentation Center of the German Council on Foreign Relations
BiDok is a specialized library with a focus on German foreign and security policy, international relations and globalization. The library's collection contains 75.000 volumes, 250 journals and electronic publications as well as a press archive dating from 1945-1967. The library is open to the public.

Freie Universität Berlin - Library
Content of the online catalogue: monographs since publication year 1990 of all Freie Universität libraries, older monographs of the university libraries and the department libraries only partly, all journals (incl. e-journals).

GBV - Common Library Network
Union catalogue of Bremen, Hamburg, Mecklenburg-Vorpommern, Niedersachsen, Sachsen-Anhalt, Schleswig-Holstein und Thüringen. Contains more than 25 million records of books, periodicals, articles, conference proceedings, electronic resources, maps, etc. Recommendabel source for literature research. EndNote connection files and filters for the GBV databases are available here.

Humboldt-Universität Berlin - Library
One of the largest university libraries in Germany, focus on humanities. Holds about 6 million books and 10 000 current journals.

KOBV - Cooperative Library Network Berlin-Brandenburg
Searching for books and other resources in the library catalogues of Berlin and Brandenburg.

KVK - Karlsruhe Virtual Catalogue
Meta search interface for German and international library and bookselling catalogues.

Library of the German Bundestag
Focus on politics and society, law, economics, public administration, and contemporary history. The catalogue contains monographs as well as articles published from 1987 onwards. The library of the German Bundestag is a non-lending library but the catalogue is a recommendabel source for literature research.

Stabi - Berlin State Library
This general library acquires publications from all fields of knowledge, in all languages, in every available form, from all epochs and all countries - providing they are of interest for academic research and purposes. Currently holds more than 10 million books and periodicals.

Technische Universität Berlin - Library
Nearly 2.7 million books are accessible in the university’s library collections. 1.8 million volumes are held in the University Library and 900.000 in independent faculty libraries.

VÖBB - Library Network of the Berlin Public Libraries
Holdings of all Berlin district libraries as well as of the 'Zentral- und Landesbibliothek' with the two branches 'Amerika-Gedenkbibliothek' and 'Berliner Stadtbibliothek'.



Official Documents


German Bundestag - Documents
Access to the databases of the German Bundestag.

Collection of internet resources for official publications
Compiled by the Berlin State Library (Stabi). Mostly you will be refered to sites of official institutions (governments, ministries and agencies, and others) from more than 50 countries. The site is only available in German.

'Parlamentsspiegel'
Information system on the parliamentary events of the federal states of Germany.



Research Information


CEWS - Center of Excellence Women and Science
CEWS is a service institute of GESIS. The scientific service scope addresses several actors, female and male, who are engaged in realization of equal opportunities for women and men in the area of science and research.

ELFI
Service center for information on research promotion in the German-speaking countries. Before the ELFI database may be used a registration is necessary. This service is only available within the WZB net.

Forschungsportal.Net
Information about research in Germany.

German Foundations Index
German foundations online.



Search Engines


A9.com
With A9.com Amazon combines research in the internet with a search in its own very extensive database. Is a search term found within a book page numbers and the respective part of the text will be displayed.

Google
Very fast plus vast index with more than 8 billion internet pages. Also offers some very helpful search tools.

Google Scholar
Academically-oriented search engine and citation databank. As well as citation verification, a search gives you bibliographic information, links to full texts, text excerpts, abstracts and related literature. The citation verification indicates where and how often the requested literature has been cited. The advanced search allows you to search by author.

OAIster
OAIster is one of the most important search engines for open access publications in numerous repositories worldwide.

Scirus
The world's largest search engine for scientific information. Apart from scientific documents and web pages, references are also collected so that citations can be verified. The advanced search allows you to more detailed request.
 


Statistics


EDS - European Data Service
Free of charge-assistance for the official European statistical data products.

Eurostat - Statistical Office of the European Communities
Comprehensive and up-to-date statistical information about the European Union and the member states. Since October 2004 all databases and electronic publications are accessible free of charge.

Federal Statistical Office Germany
The Federal Statistical Office Germany (Statistisches Bundesamt Deutschland) provides in co-operation with the 15 statistical offices of the federal states 350 statistics on the economy, society and environment. You will find here the database GENESIS-Online, the Statistics-Shop, offering amongst others many 'Fachserien' as PDF-files for free downloading, as well as a great variety of special information services.

Federal Statistical Office Germany - International Statistics

Here you can find statistics on almost every country in the world, from the databases of international organizations such as the IMF, OECD, WHO, ILO and UNESCO. The data are presented by country, theme and relevant international organizations. The service is currently available only in German.

Statistical Offices worldwide
Collection of links compiled be the Federal Statistical Office Germany.



Subject Gateways and Digital Libraries


Clio-online - Internet Gateway for History
The gateway enables efficient access to the diverse range of historical online ressources available within the field of history.

EconBiz - Virtual Library for Economics and Business Studies
EconBiz supports your research in economic literature. It offers you research in Internet resources, online-catalogues and full texts online and it provides access to information services of libraries.

CEWS - Center of Excellence Women and Science
CEWS is a service institute of GESIS. The scientific service scope addresses several actors, female and male, who are engaged in realization of equal opportunities for women and men in the area of science and research.

GESIS - German Social Science Infrastructure Services
The GESIS provides services in support of social science research including development and supply of databases with information on social science literature and research activities (e. g. SOLIS and SOFIS) as well as the archiving and provision of survey data from social research. Services including consultation on methodological questions, development of complex methods of empirical social research as well as GESIS’ own long-term observation of social developments with the aid of these instruments are also available.

Intute - The best Web resources for education and research
Intute is a free online service providing access to Web resources for education and research. The service is created by a network of UK universities and partners. Subject specialists select and evaluate the websites in the database and write high quality descriptions of the resources.

Sowiport
Sowiport is a specialized social science portal that offers quality-checked information from national and international providers about publications, research projects, institutions, specific focal topics and events. The Virtual Library for Social Sciences was integrated into Sowiport.

Vascoda
Multidisciplinary gateway for scientific information in Germany. Combines Internet services of numerous research libraries and information facilities. The following types of information resources can be found through vascoda: journal articles, working papers, further subject gateways, bibliographic data of other types of media (books, journals, microfilms etc.), other types of information resources, such as calendars, statistical data, videos etc.

ViFaPol - Virtual Library for Political Science
Internet resources and bibliographic databases for political science and peace studies. Also offers an online tutorial on the basics of searching. The whole site is only available in German.

Virtual Library for Law
Access point for Internet information about law. Provided by the Staatsbibliothek zu Berlin.

WEBIS - Special subject collections of German libraries
Information system on special subject collections of German libraries. Lists links to catalogues, contact persons and relevant internet resources.