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To the 80th Anniversary of the Birth of Mykhailo Mykolayovych Bratychak (Michael Bratychak) (1946–2023)

Olena Astakhova1, Olha Poliak1, Ananiy Kohut1

Affiliation:

1 Lviv Polytechnic National University, 12 S. Bandery St., 79013 Lviv, Ukraine olena.t.astakhova@lpnu.ua

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