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A citation index is a kind of bibliographic index, an index of citations between publications, allowing the user to easily establish which later documents cite which earlier documents. A form of citation index is first found in 12th-century Hebrew religious literature.
The word indexing service is today mostly used for computer programs, but may also cover services providing back-of-the-book indexes, journal indexes, and related kinds of indexes. [2] An indexing and abstracting service is a service that provides shortening or summarizing of documents and assigning of descriptors for referencing documents. [3]
An Iranian index of academic journals and access to full text or metadata Free Scientific Information Database: SCIndeks - Serbian Citation Index: Multidisciplinary: 80,000 A bibliographic database, a national citation index, an Open Access full-text journal repository and an electronic publishing platform. Articles from >230 journals. Free
Subject information, searchable as subject terms or approximate Dewey Classification, special features, and indexing information Indications of whether the publication is available on open access Indication of whether the publication is peer-reviewed , which is taken to include professional magazines with equivalent editorial control of quality.
According to the publisher, the index includes "peer-reviewed publications of regional importance and in emerging scientific fields". [1] The ESCI is accessible through the Web of Science, together with other Clarivate indexes. [2] [3] As of June 2021, all journals indexed in ESCI are also included in the Journal Citation Reports.
Indexes are constructed, separately, on three distinct levels: terms in a document such as a book; objects in a collection such as a library; and documents (such as books and articles) within a field of knowledge. Subject indexing is used in information retrieval especially to create bibliographic indexes to retrieve documents on a particular ...
It also covers individually selected, relevant items from approximately 1,200 titles, mostly arts and humanities journals but with an unspecified number of titles from other disciplines. As of 2011, the Arts and Humanities Search could be accessed via Dialog, DataStar, and OCLC, with weekly updates and backfiles to 1980. [1] [2] [3] [4]
Open J-Gate was a free database of open access journals, launched in February 2006, and hosted by Informatics Ltd. of India.. Informatics started metadata aggregation from open access journals as part of the development of J-Gate.