O. I. Karmash https://orcid.org/0000-0001-7199-2121 Ivan Franko National University of Lviv Ukraine
M. Ya. Liuta https://orcid.org/0000-0001-6826-1547 Ivan Franko National University of Lviv Ukraine
N. V. Yefimenko https://orcid.org/0000-0002-4400-7584 Ivan Franko National University of Lviv Ukraine
N. O. Sybirna https://orcid.org/0000-0002-9217-3931 Ivan Franko National University of Lviv Ukraine