 | Taras Banakh, (Jan Kochanowski University in Kielce, Poland and Lviv National University, Ukraine ) |
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 | Miroslav Husek, (Charles University in Prague, Czech Republic ) |
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 | Vladimir Kadets, (Kharkiv National University, Ukraine) |
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 | Volodymyr Mykhaylyuk, (Jan Kochanowski University in Kielce, Poland and Chernivtsi National University, Ukraine) |
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 | Andriy Zagorodnyuk, (Vasyl Stefanyk Precarpathian National University, Ukraine) |