Indexed
- APCZ, https://apcz.umk.pl/
- EBSCO, https://www.ebsco.com/
- Google Scholar, https://scholar.google.com/
- Mathematical Reviews, http://www.ams.org/publications/math-reviews/math-reviews
- MathSciNet, http://www.ams.org/mathscinet/
- Clarivate - Journal Citation Report, https://jcr.clarivate.com/jcr/home
- Clarivate - Web of Science, https://www.webofscience.com/wos
- Project Euclid, https://projecteuclid.org/
- SHERPA/RoMEO http://www.sherpa.ac.uk/romeo/index.php (new version: https://v2.sherpa.ac.uk/id/publication/32004)
- SCImago, http://www.scimagojr.com/
- SCOPUS, https://www.scopus.com/
- WorldCat (OCLC), https://www.worldcat.org/
- Zentralblatt Math (zbMATH), https://zbmath.org/