Useful links

Czytelnia Czasopism
http://journals.pan.pl/dlibra/journal/97809

Web of Sciences
webofknowledge.com

Scopus
https://www.scopus.com

POL-index
https://pbn.nauka.gov.pl/polindex-webapp/

Index COPERNICUS
https://www.indexcopernicus.com

SJR Scimago Journal& Country Rank
http://www.scimagojr.com