Khomko, Oleg Yosypovych; Sydorchuk, Ryslan Ihorovuch; Palyanytsy, Andriy Semenovuch; Kyfiak, Petro Vasuliovuch; Polyanskyy, Oleg Ihorovich
(International scientific professional periodical journal "THE UNITY OF SCIENCE" / Vienna, Austria February, 2016, 2016-02)