Bibliographic databases and indexes

PubMed is an openly accessible, free database which primarily includes the MEDLINE database of references and abstracts on life sciences and biomedical topics. The United States National Library of Medicine (NLM) at the National Institutes of Health maintains the database as part of the Entrez system of information retrieval.

WorldCat is a union catalog that itemizes the collections of tens of thousands of institutions (mostly libraries), in many countries, that are current or past members of the OCLC global cooperative. It is operated by OCLC, Inc. Many of the OCLC member libraries collectively maintain WorldCat's database, the world's largest bibliographic database. The database includes other information sources in addition to member library collections. OCLC makes WorldCat itself available free to libraries, but the catalog is the foundation for other subscription OCLC services (such as resource sharing and col

academic search service by Google

list of publications prohibited by the Catholic Church from 1559 to 14 June 1966

repository of freely accessible biomedical journal articles

Glottolog is an open-access online bibliographic database of the world's languages. In addition to listing linguistic materials (grammars, articles, dictionaries) describing individual languages, the database also contains the most up-to-date language affiliations based on the work of expert linguists.

Scopus is a scientific abstract and citation database, launched by the academic publisher Elsevier as a competitor to older Web of Science in 2004. The ensuing competition between the two databases has been characterized as "intense" and is considered to significantly benefit their users in terms of continuous improvement in coverage, search/analysis capabilities, but not in price. Free database The Lens completes the triad of main universal academic research databases.

online project for book data by the Internet Archive

CiNii () is a bibliographic database service for material in Japanese academic libraries, especially focusing on Japanese works and English works published in Japan. An early trial version of the database was a component of its predecessor called GeNii, available online at least since June 2002. A complete version of CiNii has been available since April 2005. The service searches from within the databases maintained by the NII itself (Citation Database for Japanese Publications, CJP), as well as the databases provided by the Japan Science and Technology Agency (J-STAGE), the National Diet Lib

online subscription index of citations

database in the field of organic chemistry

MEDLINE (Medical Literature Analysis and Retrieval System Online, or MEDLARS Online) is a bibliographic database of life sciences and biomedical information. It includes bibliographic information for articles from academic journals covering medicine, nursing, pharmacy, dentistry, veterinary medicine, and health care. MEDLINE also covers much of the literature in biology and biochemistry, as well as fields such as molecular evolution.

database providing an authoritative source of bibliographic information

digital library portal for researchers in astronomy and physics, operated by the Smithsonian Astrophysical Observatory

division of the American Chemical Society

online database of written speculative fiction and its creators

abstracting and reviewing service for mathematical literature

Trove is an Australian online library database owned by the National Library of Australia in which it holds partnerships with source providers National and State Libraries Australia, an aggregator and service which includes full text documents, digital images, bibliographic and holdings data of items which are not available digitally, and a free faceted-search engine as a discovery tool.

entry in a bibliographic index which represents and describes a specific resource

Zenodo is a general-purpose open repository developed under the European OpenAIRE program and operated by CERN. It allows researchers to deposit research papers, data sets, research software, reports, and any other research related digital artefacts. For each submission, a persistent digital object identifier (DOI) is minted, which makes the stored items easily citeable.

former online bibliographic database, developed by Microsoft Research, shut down in 2022

LexisNexis is an American data analytics company headquartered in New York. Its products are various databases that are accessed through online portals, including portals for computer-assisted legal research (CALR), newspaper search, and consumer information. During the 1970s, LexisNexis began to make legal and journalistic documents more accessible electronically. the company had the world's largest electronic database for legal and public-records–related information. The company is a subsidiary of RELX.

database

rapid alerting service database

bibliographic database for economics

PhilPapers is an interactive academic database of journal articles in philosophy. It is maintained by the Centre for Digital Philosophy at the University of Western Ontario, and it has "394,867 registered users, including the majority of professional philosophers and graduate students". The general editors are its founders, David Bourget and David Chalmers.

index of zoological literature

French open access repository

SciELO (Scientific Electronic Library Online) is a bibliographic database, digital library, and cooperative electronic publishing model of open access journals. SciELO was created to meet the scientific communication needs of developing countries and provides an efficient way to increase visibility and access to scientific literature. Originally established in Brazil in 1997, today there are 16 countries in the SciELO network and its journal collections: Argentina, Bolivia, Brazil, Chile, Colombia, Costa Rica, Cuba, Ecuador, Mexico, Paraguay, Peru, Portugal, South Africa, Spain, Uruguay, and V

catalogue and later database of references and abstracts on biology

Embase (often styled EMBASE for Excerpta Medica dataBASE) is a biomedical and pharmacological bibliographic database of published literature designed to support information managers and pharmacovigilance in complying with the regulatory requirements of a licensed drug. Embase, produced by Elsevier, contains over 32 million records from over 8,500 currently published journals from 1947 to the present. Through its international coverage, daily updates, and drug indexing with EMTREE, Embase enables tracking and retrieval of drug information in the published literature. Each record is fully indexe

database of scientific illustrators active 1450–1950 and no longer alive

database of biomedical research

Scirus was a comprehensive science-specific search engine, first launched in 2001. Like CiteSeerX and Google Scholar, it was focused on scientific information. Unlike CiteSeerX, Scirus was not only for computer sciences and IT and not all of the results included full text. It also sent its scientific search results to Scopus, an abstract and citation database covering scientific research output globally. Scirus was owned and operated by Elsevier. In 2013 an announcement appeared, on the Scirus homepage, announcing the site's retirement in 2014:

BioOne is a nonprofit publisher of scientific research.

bibliographic database

index to medical literature

former academic search engine

Wikimedia list article

OpenAlex is a bibliographic catalogue of scientific papers, authors and institutions accessible in open access mode, named after the Library of Alexandria. It started operating in January 2022 by OurResearch as a successor of the terminated Microsoft Academic Graph. OpenAlex competes with commercial products such as Clarivate's Web of Science or Elsevier's Scopus, and is complemented by bibliometrics tools and an API.

academic search engine

resource for finding publications

index of bibliographic information on academic journals in the humanities and social sciences

Latindex (Regional Cooperative Online Information System for Scholarly Journals from Latin America, the Caribbean, Spain and Portugal) is a bibliographical information system available for free consultation. Established as a network in 1997, the project is based on the cooperation of 17 national resource centers that operate in a coordinated scheme for the gathering and dissemination of relevant information and data on the Iberoamerican journals.

Reaxys is a web-based tool for the retrieval of information about chemical compounds and data from published literature, including journals and patents. The information includes chemical compounds, chemical reactions, chemical properties, related bibliographic data, substance data with synthesis planning information, as well as experimental procedures from selected journals and patents. It is licensed by Elsevier.

repository of digital documents

AGRICOLA (AGRICultural OnLine Access) is an online database created and maintained by the United States National Agricultural Library of the United States Department of Agriculture.

bibliographic database

digital library supported by National and University library of Slovenia

thumb|300x300px|logo of BARTOC The Basic Register of Thesauri, Ontologies & Classifications (BARTOC) is a database of Knowledge Organization Systems. Its main goal is to document knowledge organization systems (KOS), such as classifications, thesauri and authority files, at one place, in order to achieve greater visibility, highlight their features, make them searchable and comparable, and foster knowledge sharing. In contrast to other terminology registries, BARTOC includes any kind of KOS from any subject area, in any language, any publication format, and any form of accessibility. In additi

web search engine for scholarly literature

database management system developed by Stanford University

GEOBASE is a database, multidisciplinary in scope, which indexes bibliographic information and abstracts for the Geographical, Earth, and Ecological sciences, published by Engineering Information, a subsidiary of Elsevier. The broad subject coverage includes earth sciences, ecology, geomechanics, human geography, physical geography, social geography and oceanography. Development studies are also included in this database.

HubMed is an alternative, third-party interface to PubMed, the database of biomedical literature produced by the National Library of Medicine. It transforms data from PubMed and integrates it with data from other sources. Features include relevance-ranked search results, direct citation export, tagging and graphical display of related articles.

service that provides summaries and descriptions of documents

INSPIRE-HEP is an open access digital library for the field of high energy physics (HEP). It is the successor of the Stanford Physics Information Retrieval System (SPIRES) database, the main literature database for high energy physics since the 1970s.

bibliography of publications in European languages on Islam and the Muslim world from 1906

bibliographic almanac in the field of the classics

US Department of Education online repository

CINAHL (Cumulative Index to Nursing and Allied Health Literature) is an index of English-language and selected other-language journal articles about nursing, allied health, biomedicine, and healthcare.