- EBSCO host
- DOAJ (Directory of Open Access Journals)
- Ulrichsweb™ - Ulrich's Global Serials Directory
- Index Copernicus (ICV 2020: 85.97)
- Information Matrix for the Analysis of Journals (MIAR)
- Google Scholar
- GIFT - Global Information Full Text, Switzerland
- Academia
- Cross Ref
- Biblioteka Narodowa (Warsaw)
- ISSN National Centre
- ResearchBib
- World Cat
- Scilit
- UNPAYWALL
- Socionet
- BASE
- Dimensions
- OpenAIRE
- LENS
- Microsoft Academic (finding articles by DOI)
- CORE
- Korea Open Access platform for Researchers
- Open Ukrainian Citation Index
- Open Archives
- Dissemin (finding articles by Article Title)
- Semantic Scholar (finding articles by Article Title)
- Fatcat
- Neliti
- ScienceGate Academic Search Engine
- Bibliotheks Verbund Bayern (Germany)
- PHSG University of Education St.Gallen
- University of Saskatchewan Library (Canada)
- University of Washington Libraries (USA)
- Research4Life
- University of South Australia Library
- iDiscover (University of Cambridge)
- Sherpa Romeo
- Public Knowledge Project

Digital archiving:
- PKP Preservation Network (PKP PN)