Funding for this research was provided by:
Opole University of Technology
Article History
Received: 1 April 2020
Revised: 1 October 2020
Accepted: 6 October 2020
First Online: 19 October 2020
Compliance with ethical standards
:
: The authors declare that has no any conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.