AUTHOR GUIDELINES
O. V. Мykhailenko Taras Shevchenko National University of Kyiv Ukraine
S. R. Petrusenko Taras Shevchenko National University of Kyiv Ukraine
Ya. O. Vitushinska Taras Shevchenko National University of Kyiv Ukraine
Yu. I. Prylutskyy Taras Shevchenko National University of Kyiv Ukraine
D. O. Zavodovskyi Taras Shevchenko National University of Kyiv Ukraine
O. O. Мykhailenko Taras Shevchenko National University of Kyiv Ukraine
O. Yu. Lagerna Taras Shevchenko National University of Kyiv Ukraine