Abstracting & Indexing
Speeding up searches: Abstracting & indexing (A&I) services unlock the content of academic journals and ebooks using metadata and abstracts, thereby improving the ease of use of academic literature. The metadata used in abstracting & indexing services includes the title, author, publication date, journal title, volume and issue number, page numbers, subject area, keywords, DOI, etc. Inputting search criteria brings up the metadata and abstracts of relevant articles, chapters, and books, along with links to the full-text versions.
If the user already has full-text access or if the relevant publications are available in open access formats, the full-text versions can be accessed immediately. Otherwise, readers are usually provided with information from the publisher or rights holder on how to access the publication.
At present, there are around 200 corporations and institutions offering A&I services with around 400 individual databases. These include:
At De Gruyter, we collaborate with almost all abstracting & indexing services and are constantly expanding our database provision for the benefit of our readers.
Clarivate Analytics’ Journal Impact Factor (JIF) is the most widely used scientometric/bibliometric indicator for journals. The JIF measures the average number of citations received by a journal’s articles published in the two preceding years. The higher the score, the more influential the journal. The score range however differs significantly from discipline to discipline.
The results for the previous year are published in the Journal Citation Reports around the middle of each year.
CiteScore, SCImago Journal Rank, and Source Normalized Impact per Paper are three other scientometric journal indicators that are now well established. They are all based on the Scopus database and publish the previous year’s results every summer.
You can find the scientometric scores for our journals on the relevant product pages of our website.