1. Nazarbayev University, Nur-Sultan, Kazakhstan, zubra_kz@mail.ru, nurgul.daniyeva@nu.edu.kz
2. Częstochowa University of Technology, Częstochowa, Poland, EU, kawalek.anna@wip.pcz.pl, kvozhmegov@wp.pl
3. Karaganda State Industrial University, Temirtau, Kazakhstan, cooper802@mail.ru