Walendziak, Andrzej http://orcid.org/0000-0002-9866-0781
Funding for this research was provided by:
Siedlce University of Natural Sciences and Humanities
Article History
First Online: 14 July 2020
Compliance with ethical standards
:
: The author declares that he has no conflict of interest.
: This article does not contain any studies with human or animal participants performed by the author.