crossref  PRAVO publishing house is an official member of Crossref – the association of scholarly publishers that develops shared infrastructure to support more effective scholarly communications. Crossref’s general purpose is to promote the development and cooperative use of new and innovative technologies to speed and facilitate scholarly research. Crossref’s specific mandate is to be the citation linking backbone for all scholarly information in electronic form. Crossref is a collaborative reference linking service that functions as a sort of digital switchboard. It holds no full text content, but rather effects linkages through Crossref Digital Object Identifiers (Crossref DOI), which are tagged to article metadata supplied by the participating publishers. The end result is an efficient, scalable linking system through which a researcher can click on a reference citation in a journal and access the cited article.
Crossref citation-linking network today covers over 67 million journal articles and other content items (books chapters, data, theses, technical reports) from thousands of scholarly and professional publishers around the globe.

Google Scholar

  Google Scholar is a freely accessible web search engine that indexes the full text or metadata of scholarly literature across an array of publishing formats and disciplines. Google Scholar index includes most peer-reviewed online journals of Europe and America’s largest scholarly publishers. This product provides the citation indexing features. Researchers estimated that the Goggle Scholar index covers approximately 160 million documents.

Index Copernicus International

ICV 2014: 42.69       ICV 2015: 56.37           ICV 2016: 54.34

Index Copernicus International is an international academic database that provides indexing, ranking and referencing of journals, and serves as a platform for scientific collaboration and joint research projects. The Copernicus Journals Master List now contains over 13,000 journals from around the world and from all fields of science.

Infobase Index

infobaseindex    IBI Factor 2017: 3,0

InfoBase Index is a comprehensive, multipurpose database covering scholarly literature from all over the world. It is run by “Akshantala Education and Charitable Trust” a nonprofit organization. InfoBase Index indexes articles from all over the world. InfoBase Index aims at increasing the visibility of open access scholarly journals, thereby promoting their increased usage and impact. InfoBase Index plays the much required role of aggregator, segregator and provider of quality information.

Central and Eastern European Online Library (CEEOL)

  CEEOL is a leading provider of academic e-journals and e-books in the Humanities and Social Sciences from and about Central and Eastern Europe. Currently, over 600 publishers entrust CEEOL with their high-quality journals and e-books. CEEOL provides scholars, researchers and students with access to a wide range of academic content in a constantly growing, dynamic repository. Currently, CEEOL covers more than 1.100 journals and 350.000 articles.

Ulrich’s Periodicals Directory 

Ulrich subscription catalog of American publishing Bowker, is the largest database that describes the global flow of periodicals in all subject areas.

Cite Factor

cite factor  Citefactor is a service that provides access to quality controlled Open Access Journals. The Directory indexing of journal aims to be comprehensive and cover all open access scientific and scholarly journals that use an appropriate quality control system, and it will not be limited to particular languages or subject areas. The aim of the Directory is to increase the visibility and ease of use of open access scientific and scholarly journals thereby promoting their increased usage and impact.

Scientific Indexing Services (SIS)

Sis-Logo  Scientific Indexing Services (SIS) is the database that offering academic database services to researcher. It’s mainly: citation indexing, analysis, and maintains citation databases covering thousands of academic journals, books, proceedings and any approved documents. SIS maintains academic database services to researchers, journal editors and publishers. SIS provides quantitative and qualitative tool for ranking, evaluating and categorizing the journals for academic evaluation and excellence. This factor is used for evaluating the prestige of journals. 

Cosmos Impact Factor

cosmos_logo_big  The Cosmos Foundation was founded in 2010 by a group of 100 scientists from different countries, representatives of various fields of knowledge. The Foundation’s activities are aimed at providing researchers with quality scientific information. Cosmos provides researchers with scientific databases, services for researchers, magazine editors and publishers, provides quantitative and qualitative tools for ranking, evaluation and classification of magazines, and identifying best practices. Cosmos Impact Factor is used to assess the prestige of magazines.

 International Innovative Journal Impact Factor (IIJIF)

IIJIF-International Innovative Journal Impact Factor  International Innovative Journal Impact Factor (IIJIF) has been established to promote various platforms related to Academic and Research across the world to make it easily accessible and more organized. IIJIF evaluates Journal Impact Factor to set a benchmark for the quality of Serial publications across the world.

 Academic Research Index (ResearchBib)  

academic  Academic Recource Index is the product of ResearchBib. It can freely index journals and research papers. ResearchBib tries to cover all scientific open access journals that use an appropriate quality control system. It is not limited to specific languages or subject areas. The ResearchBib journal database is the most complete log database available on the Internet. It contains 420,000 magazines from various publishers.

Directory of Research Journals Indexing (DRJI)

DRJI_Logo  Directory of Research Joiunals Indexing (DRJI) is a free online service that indexes open access journals and creates its own rating of journals in the DRJI database, known as “DRJI Value”. The DRJI index contains about 50,000 articles from 2,300 magazines published in 103 countries. DRJI provides free access to educational literature to support educational research and improvement of teaching, decision-making in education and research.


logo (1)  JOURNAL FACTOR is an internationally recognized forum for advancing research and knowledge sharing. Its task is to determine the quality and the impact factor of published scientific work. JOURNAL FACTOR offers: help in identifying the best journals for the publication of the author’s research work; open access to published journals where fees are not a barrier.

The Journal Impact Factor (JIF)

logo  JIF provides a reflecting tool for ranking, categorizing, evaluating, and comparing various International / National Journals having ISSN published by Learning societies Universities and Institutes & Publication House. This factor is used for evaluating the prestige of journals.

Scientific World Index  Scientific world index is a worldwide directory that indexes and provides access to different journals in all fields of sciences which covers all languages. Scientific world index accepts scientific journals from all countries. Scientific world index plans to increase the visibility of scholarly journals.

Open Academic Journals Index

oaji  Open Academic Journals Index (OAJI) is a full-text database of open-access scientific journals. Founder — International Network Center for Fundamental and Applied Research, Russian Federation. The Center’s mission lies in putting together an international platform for indexing open-access scientific journals. In a short-term perspective, we are considering calculating the journal Impact Factor.

Polska Bibliografia Naukowa (PBN)

logo_PBN_BETA_pl  Polish Scientific Bibliography is a portal of the Ministry of Science and Higher Education gathering information about publications of Polish scientists, publications of scientific units and on Polish and foreign magazines. It is part of the Integrated Information System on Science and Higher Education POL-on.Systems PBN and POL-index are administered by the Information Processing Center – National Research Institute.

Science Library Index

logo2  Science library index is a comprehensive, multipurpose database covering scholarly journals from all over the world. It is a directory which indexes and provides access to high quality, peer-reviewed journals. Science library index proposes to cover all scientific and scholarly journals that use an appropriate quality control system, and it will not be limited to particular languages or subject areas. The purpose of Science library index is to increase the visibility and ease of use of scholarly journals, thereby promoting their increased usage and impact.

Scientific Periodicals of Ukraine

Вернадский  Producer of Scientific Periodicals of Ukraine (SPU VNLU) is Vernadsky National Library of Ukraine. SPU VNLU contains articles from international journals in all fields of knowledge and carries out the completion of full-text electronic information resources, electronic counterparts’ publications or electronic publications provided by the owners. As part of an information resource “Scientific Periodicals of Ukraine” is adjusted full-text search of scientific publications in PDF format. VNLU spent working on the integration of information resource “Scientific Periodicals of Ukraine” to the interface of analytical services, Google Scholar (Google Academy). It contains approximately 2520 – journals; 25372 – issues; 628524 – full texts of articles.

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