Authors
Olena Pavlova
Lesya Ukrainka Volyn National University, Lutsk, Ukraine
AGH University of Krakow, Krakow, Poland
Svitlana Bortnik
Lesya Ukrainka Volyn National University, Lutsk, Ukraine
Liubomyr Matiichuk
Ternopil Ivan Puluj National Technical University
Liubov Starodubtseva
The State Treasury Service of Ukraine