The editorial staff of the "Barometr Regionalny. Analizy i Prognozy" magazine uses the anti-plagiarism program https://www.crossref.org/services/similarity-check/ using iThenticate software (http://www.ithenticate.com/) belonging to Turnitin. The program allows you to examine the similarity of the text sent to the editorial office of the magazine "Baromter Regionalny. Analizy i Prognozy" with articles deposited by publishers using Similarity Check and with Internet sources.