Authors
R. Bishchak
Ivano-Frankivsk National Technical University of Oil and Gas, Ivano-Frankivsk
O. Maruschak
Ivano-Frankivsk National Technical University of Oil and Gas, Ivano-Frankivsk
D. Draganovská
Technical University of Košice, Košice
A. Pylypenko
National University of Life and Environmental Sciences of Ukraine, Kyiv
