Filina-Dawidowicz, LudmiĆa http://orcid.org/0000-0001-6916-6066
Filin, Sergiy
Funding for this research was provided by:
West Pomeranian University of Technology, Szczecin
Article History
Received: 20 July 2017
Accepted: 29 August 2018
First Online: 19 September 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.