Sajnaga, Ewa http://orcid.org/0000-0003-4179-1948
Kazimierczak, Waldemar http://orcid.org/0000-0001-8576-4701
Funding for this research was provided by:
European Regional Development Fund (POPW.01.03.00-06-003/09-00)
Article History
Received: 23 October 2019
Accepted: 5 December 2019
First Online: 10 January 2020