MEDLINE® is the United States National Library of Medicine's (NLM®) premier bibliographic database providing information from the following fields: Medicine, Nursing, Dentistry, Veterinary medicine, Allied health, Pre-clinical sciences. as well as information from international literature on biomedicine, including the following topics as they relate to biomedicine and health care: Biology, Environmental science, Marine biology, Plant and animal science, Biophysics, Chemistry. The database contains bibliographic citations and author abstracts from approx. 5,000 biomedical journals published in the United States and in 70 other countries. MEDLINE contains well over 13 million citations dating back to 1946. NLM uses a controlled vocabulary of biomedical terms to index articles, to catalog books and other holdings. MEDLINE’s controlled-vocabulary thesaurus contains Medical Subject Headings (MeSH®) to describe the subject of each journal article in the database. MeSH terms provide a consistent way of retrieving information that uses different terminology for the same concept. Within MEDLINE’s thesaurus, MeSH terms display hierarchically by category, with more specific terms arranged beneath broader terms.

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.

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 OSF Preprints search combines records from various preprint repositories, including arXiv, bioRxiv, Cogprints, PeerJ, PsyArXiv, RePEc and SocArXiv.

Oxford Bibliographies in International Law offers exclusive, authoritative research guides that combine the best features of an annotated bibliography and a high-level encyclopedia. The database provides a comprehensive introduction to the essential body of literature that has shaped scholarly thought. It provides expert recommendations on the works available in International Law whether it be a chapter, a book, a journal article, a Website, blog, or data set. The entries provide a critical reflection on the literature and define the concepts necessary for legal aspects of international problems. The module “International Law” comprises e.g. the following main subjects: “History of International Law”, “Human Rights”, “International Economic Law”, “International Environmental Law”, “International Humanitarian Law”, “Sources, Foundations, and Principles of International Law”, “Specific Nations and Regions”, “Territory and Sea Law”, “Theory of International Law”. RSS alerts notify you when articles and bibliographies are updated.

The Oxford Legal Research Library provides access to leading works relevant to "International Commercial Arbitration" as well as "International Commercial Law" and "Private International Law". A title list can be found at https://olrl.ouplaw.com/page/476/ (the product "Financial and Banking Law" is not licensed).

This historic journal index enables the simultaneous search in millions of citations for articles published in the arts, humanities and social sciences, across more than 300 years. It enables researchers quickly and comprehensively to identify articles relevant to their field of study and reduces what could take years of research to a matter of minutes. Journals indexed span 37 key subject areas and multiple languages.

The PrimateLit database provides bibliographic access to the scientific literature on nonhuman primates for the research and educational communities. Coverage of the database includes all publication categories (articles, books, abstracts, technical reports, dissertations, book chapters, etc.) and many subject areas (behavior, colony management, ecology, reproduction, field studies, disease models, veterinary science, psychology, physiology, pharmacology, evolution, taxonomy, developmental and molecular biology, genetics and zoogeography).

The Russian national bibliography is going back to 1998 and consists of 8 series: * Knigi Rossii (formerly Knizhnaia letopis’): Russian book publications. * Statii iz rossiiskikh gazet (formerly Letopis’ gazetnykh statei): Bibliographic entries on documentary materials, articles, and works of fiction from every major newspaper in Russia. * Statii iz rossiiskikh zhurnalov (formerly Letopis’ zhurnal’nykh statei): The complete index to Russian journals. * Retsenzii iz rossiiskikh izdanii (formerly Letopis’ retsenzii): Book reviews (Russian and foreign) found in the central and regional Russian press. * Rossiiskie kartograficheskie izdaniia (formerly Kartograficheskaia letopis’): Bibliographic information for all cartography and maps produced in Russia. * Avtoreferaty dissertatsii (formerly Letopis’ avtoreferatov dissertatsii): Indexes all synopses of dissertations defended in research and educational establishments in the Russian Federation. * Rossiiskie notnye izdaniia (formerly Notnaia letopis’): General index to Russian music. * Rossiiskie izoizdaniia (formerly Letopis’ izoizdanii): Bibliographic index of albums, posters and reproductions published either separately or appearing in books, collected works and magazines.

SciELO (Scientific Electronic Library Online) is a program of the Sao Paulo Research Foundation for the cooperative publishing of open access journals on the internet. Content includes regional journals from Latin American and the Caribbean as well as titles from Spain, Portugal and South Africa. The index covers approximately 650 titles (over 350 adding content to journals already covered in the Web of Science) and contains several million cited references.

ScienceOpen is a networking platform for scholars to enhance their research in the open, make an impact, and receive credit for it. The site provides advanced search and discovery functions, combined with post-publication peer review, recommendation, social sharing, and collection-building features. The Max Planck Society covers article-processing charges for ScienceOpen Research and ScienceOpen Poster centrally. Further details are available on the MPDL website.

SocArXiv, open archive of the social sciences, provides a free, non-profit, open access platform for social scientists to upload working papers, preprints, and published papers, with the option to link data and code. SocArXiv is dedicated to opening up social science, to reach more people more effectively, to improve research, and build the future of scholarly communication.

Springer Nature publishes the largest available collection of reproducible laboratory protocols and methods for the life sciences. The Experiments platform provides accees to the content from SpringerProtocols, Nature Methods, Nature Protocols and Protocol Exchange through a single easy-to-use platform, designed to save researchers' time.

Zoological Record provides access to publications in animal biology and biodiversity. It covers 5,000 serials, plus many other sources of information, including books, reports, and meetings. It contains, in particular, a significant amount of literature on insects, reptiles, birds, fish and wildlife which is not included elsewhere (e.g. in BIOSIS Previews). It is also a leading taxonomic reference work.