The official DOI (digital object identifier) link registration agency for scholarly and professional publications. Crossref operates a cross-publisher citation linking system that allows a researcher to click on a reference citation on one publisher’s platform and link directly to the cited content on another publisher’s platform, subject to the target publisher’s access control practices. This citation-linking network covers millions of articles and other content items from several hundred scholarly and professional publishers.
Provides a simple way to search broadly for scholarly literature. Includes peer-reviewed papers, theses, books, abstracts and articles, from academic publishers, professional societies, preprint repositories, universities and other scholarly organizations. Google Scholar sorts articles by weighing the full text of each article, the author, the publication in which the article appears, and how often the article has been cited in other scholarly literature, so that the most relevant results are returned on the first page.
The Index Medicus for the Eastern Mediterranean Region (IMEMR), one of the major projects of the Virtual Health Sciences Library (VHSL), was initiated in response to a pressing need to index health and biomedical journals. Currently, the Index includes more than 180 000 bibliographic citations from more than 645 health and biomedical journals published in 20 countries of the Region: Afghanistan, Bahrain, Egypt, Iraq, Islamic Republic of Iran, Jordan, Kuwait, Lebanon, Libya, Morocco, Oman, Pakistan, occupied Palestinian territory, Qatar, Saudi Arabia, Sudan, Syrian Arab Republic, Tunisia, United Arab Emirates and Yemen.
The Directory of Research Journal Indexing (DRJI) increase the visibility and ease of use of open access scientific and scholarly journals thereby promoting their increased usage and impact. DRJI supply champion has access to global-renowned content in all discipline areas including magazine and journal articles. DRJI encourages the participation of all persons, groups, and organizations interested in indexing and related methods of information retrieval.
The Cite Factor server provides indexing of major international journals and proceedings. The purpose is to increase the visibility and ease of use of open access scientific and scholarly journals. If your journal is indexed & got validated stamp from Cite factor, you can request for the calculation of impact factor for your journal.
Open Academic Journals Index (OAJI) is a full-text database of open-access scientific journals. The mission is to develop an international platform for indexing the scientific journals of open access. The Current Global Index of the Journal (CGIJ) OAJI is created taking into account the current global trends and challenges in the field of indexing the scientific journals.
WorldCat is the largest library catalog globally. It comprises of a vast network of library-based content and services. WorldCat lets you to search individual libraries with in the community and thousands of other libraries around the world. It also provides access to online articles, books and journals.
Libris is a combined directory of the Swedish academic and research libraries. The National Library of Sweden is accountable for the updating and developmental procedures of this online search service. the search engine is monitered and updated on daily basis. Libris links you to swedish research libraries and the public libraries as well. It provide access to books, periodicals, articles, maps, posters, printed music, electronic resources, etc.