Przydatek, Grzegorz http://orcid.org/0000-0001-6603-6135
Funding for this research was provided by:
State University of Applied Sciences in Nowy Sącz (PB.501-2/2017)
Article History
Received: 3 May 2019
Accepted: 11 September 2019
First Online: 26 November 2019
Compliance with ethical standards
:
: The author declares that he have no conflict of interest.