https://wamt.edu.pl/author/dariusz-derlukiewicz/https://wamt.edu.pl/author/docom/https://wamt.edu.pl/author/eryk-chodowski/https://wamt.edu.pl/author/grzegorz-michalak/https://wamt.edu.pl/author/katarzyna-mikulska/https://wamt.edu.pl/author/marketingwsiiz-pl/https://wamt.edu.pl/author/mateusz-stola/https://wamt.edu.pl/author/piotr-ozimek/https://wamt.edu.pl/author/tomasz-witkowski/