Authors
Vasyl Trush
Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, Lviv, Ukraine
Pavlo Maruschak
Ternopil Ivan Puluj National Technical University, Ternopil, Ukraine
Mykhailo Student
Ternopil Ivan Puluj National Technical University, Ternopil, Ukraine
Serhii Lavrys
Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, Lviv, Ukraine
Aleksandr Luk’yanenko
Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, Lviv, Ukraine