Shpotyuk, O.
Ingram, A.
Baláž, P.
Bujňáková, Z.
Shpotyuk, Ya.
Cebulski, J.
Article History
Received: 10 December 2017
Accepted: 10 January 2018
First Online: 21 February 2018
Compliance with ethical standards
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest.