Kucheriv, Olesia I.
Oliynyk, Viktor V.
Zagorodnii, Volodymyr V.
Launets, Vilen L.
Gural’skiy, Il’ya A.
Article History
Received: 5 September 2016
Accepted: 31 October 2016
First Online: 2 December 2016
Competing interests
: The authors declare no competing financial interests.