Kononenko Igor, professor, National Technical University Kharkiv Polytechnic Institute
Kunanets Nataliia, professor, Lviv Polytechnic National University, Lviv, Ukraine
Lytvyn Vasyl, professor, Lviv Polytechnic National University, Lviv, Ukraine
Veretennikova Nataliia, PhD, Lviv Polytechnic National University, Lviv, Ukraine