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A multi-field academic search engine run by the Bielefeld University Library. It reaches selected sources overlooked by commercial search engines.
CAIRN.INFO
Established in 2005 by four Belgian and French academic publishers, the database offers the most comprehensive online collection of Francophone publications in the social sciences and humanities. The English-language version of the platform provides access to English-language abstracts and selected articles from key journals in the collection.
CORE
Aggregator of open access repositories and journals. It enables text search, filtering the obtained results according to various criteria and recommends additional literature in the field of interest.
DART Europe E-theses Portal
The metadata database makes it possible to access doctoral theses in open access, which are stored in various academic and institutional repositories in Europe. In the database, you can search for works according to the terms you are interested in or browse through separate indexes.
DOAJ - Directory of Open Access Journals
A multi-field list of international peer-reviewed scientific journals available under open access conditions, searchable at the article criteria.
DOAB- Directory of Open Access Books
The database indexes and provides access to scientific, peer-reviewed open access books. It holds nearly 58,364 peer-reviewed academic books in various fields of knowledge.
Google Books Search
A service that works similarly to a search engine. Allows you to search for books whose content matches the entered terms.
Google Scholar
A toll-free specialized search engine that includes various publications from many fields of knowledge.
KVK - Karlsruhe Virtual Catalog
Multi-search engine of the University of Karlsruhe Library (Karlsruher Institut für Technologie), enabling searching the catalogues of the world's leading libraries (especially German-language ones) and selected databases.
LIBRARIA
A database of full-text periodicals published in modern Ukraine, mainly from the 1920s to the 1940s in Ukrainian, as well as Polish, Yiddish, Tatar, German and Russian languages.
OAIster
Linked Libraries search engine that searches open access digital resources. It currently covers over 30 million records from 1,500 member institutions (including academic repositories). It searches for digitized books, manuscripts, master's and doctoral theses, statistical data, multimedia materials.
OpenAIRE
A pan-European meta-repository that allows access to Open Access resources. The platform goes beyond the traditional aggregator of scientific publications. The project also aims to support scientists in placing research results in institutional or field repositories, building infrastructure for a network of repositories, researching scientific data management services together with communities of scientists from selected disciplines. The
OpenAIRE infrastructure helps researchers and coordinators of scientific projects through guides, training and individual advice.
OpenDOAR
Directory of open repositories from around the world. It allows you to both search for repositories and search their resources by several categories, e.g. field of knowledge, document type and language, geographical location. OpenDOAR provides creators of open archives with support tools and the opportunity to share their experience.
Paperity
The first multi-field aggregator of journals and scientific articles published in open access. It indexes a large and growing percentage of new "gold-type" articles and includes publications from many leading scientific publishers.
Persée
A collection of French and French-language journals as well as other humanities scholarly publications published from the 19th century to the present day. It provides access to, usually full text, publications in the field of anthropology, archaeology, economy, philosophy, geography, history, linguistics, social communication, literary studies, political science, pedagogy, law, psychology, sociology and art.
Project Gutenberg
A multilingual collection of eBooks that can be downloaded and distributed free of charge for non-commercial purposes.
PublishersGlobal
Worldwide publisher database that is searchable by country, field, language, services, and more.
SciCentral
An award-winning collection of science news in the fields of chemistry, physics, life sciences, medicine, earth sciences, engineering and space sciences.
SSRN - Social Science Research Networks
An award-winning social science network and repository.
TechXtra
A free service initiated by Heriot Watt University. Searches databases and websites in the field of computer science, engineering and mathematics.
Wayback Machine
The service of the Internet Archive foundation that allows you to access a significant part of archival versions of websites from 1996 onwards.
WorldCat
The world's largest bibliographic database created by libraries associated in the Online Computer Library Center (OCLC). It allows you to search catalogues from libraries all over the world.
Select digital libraries in the world
Search engine for scientific articles by digital object identifier.
ISSN
World catalog of serial publications (magazines, publishing series, periodicals) with the ISSN number (International Standard Serial Number) assigned by the ISSN International Centre in Paris and the national ISSN headquarters.
VIAF - Virtual International Authority File
Virtual international reference directory.
Search engine for specific places on the globe. The free application (downloadable from the website) allows you to view satellite images and maps in various magnifications.
ALEX
A collection of scans of historical Austrian legal documents, including German- and Polish-language documents concerning the Polish lands under the rule of the Habsburgs.
Bibliographic database for the history of Central and Eastern Europe
Database of the German Herder Institute in Marburg (Bibliographieportal zur Geschichte Ostmitteleuropas) created in cooperation with scientific institutions of selected Central European countries.
Bibliografie české a slovenské historiografie
Joint bibliography catalogue of Czech and Slovak historiography.
Deutsche Historische Bibliografie
Bavarian State Library, Berlin-Brandenburg Academy of Sciences, Institute for Contemporary History, German Museum, the German Historical Bibliography.
Monumenta Germaniae Historica
An electronic version of a fundamental medieval sourcebook. It includes historical works, statutes, letters, legal and political texts, as well as belles-lettres and materials for medieval culture. In addition to the history of Germany, it concerns universal and national history, including Polish history.
Österreichisches Biographisches Lexikon 1815-1950
Austrian historical bibliography, covering literature since 1945 and taking into account the Austrian aspect of Polish history.
Genealogy
Adelsforschung
A portal dedicated to the nobility from the historical area of Germany, including Poles.
Familienforschung in Westpreussen
A search engine for people and places in West Prussia, i.e. in the Polish area of Eastern Pomerania.
FamilySearch
Website operating under the auspices of Mormons.
Find A Grave
The grave search engine shows the date of birth and date of death, and sometimes more detailed biographical data, a photo of a tombstone or a person.
Genealogy Indexer
A search engine including address books, telephone books and other guides.
Genealogy.net
A German portal including Polish data.
Gerbovnik.ru
A Russian genealogy database.
Gräbersuche online
Search engine for the graves of German army soldiers from World War I and II, including Poles incorporated into its ranks.
Jewish Records Indexing - Polska
Database of Jewish record books.
Passenger Search
Base of emigrants coming to the USA from the second half of the 19th century to the mid-20th century.
Radzima.net
Search engine of ancestors in the area of Belarus, Lithuania and north-eastern Poland.
International bibliography of translations compiled by the United Nations Educational, Scientific and Cultural Organization. The database contains bibliographic information on translated books published in approximately 100 UNESCO member countries since 1979. It records books from all fields of knowledge.
An information service developed by the European Mathematical Society (EMIS). It provides access to the largest electronic mathematical library ElibM. It also informs about current events in the European mathematical community.
EuDML – European Digital Mathematical Library
Europe's largest digital collection of mathematics articles and books. Most of the resources are English-language publications, but works in over 20 other languages are also available in the library. The oldest digitized publications in the library come from the 16th century. The Polish Digital Mathematical Library is a part of EuDML.
A digital archive for the U.S National Institute of Health (NIH). Includes peer-reviewed articles from biomedical and life sciences journals.
The UN documents database from 1979 onwards. Older documents are added continuously in the process of retroconversion. Some documents are available in full text in 6 languages: Arabic, Chinese, English, French, Russian and Spanish.
A search engine for the German Bundesinstitut für Sportwissenschaft (BISp) recording, often with full access, publications and videos in various languages, including Polish.
The database contains music prints, recordings of works and information about composers from around the world. Most of the materials are available in open access.
The database offers access to patent documents of the European Patent Office, patent offices of individual European countries and a global database of patent applications.
USPTO United States Patent and Trademark Office
U.S. Department of Commerce databases containing full texts and facsimiles of patent applications and patents (from 1790 to date - patents; from 2001 to date - patent applications).
Mutli-search engine of theological and religious resources of the German language area.