Authors
Ivano-Frankivsk National Technical University of Oil and Gas
Ivano-Frankivsk National Technical University of Oil and Gas
© 2020 Lubomyr Poberezhny, Ihor Chudyk, Andrii Hrytsanchuk, Oleg Mandryk, Tetyana Kalyn, Halyna Hrytsuliak, Yaroslav Yakymechko, published by STE Group sp. z.o.o.
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