Funding for this research was provided by:
State Committee of Science
Armenian National Science and Education Fund
Russian-Armenian (Slavonic) University
Nicolaus Copernicus University
Article History
Received: 23 June 2020
Accepted: 6 October 2020
First Online: 21 November 2020
Compliance with ethical standards
:
: We (Jacek Karwowski, Artur Ishkhanyan and Andrzej Poszwa) herewith declare that we have no conflict of interest