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ISSN 1819-0464. Available at: &lt;<a href="http://journal.dnmu.ru/index.php/UC/article/view/545" target="_new">http://journal.dnmu.ru/index.php/UC/article/view/545</a>&gt;. Date accessed: 14 july 2026.
doi: <a href="https://doi.org/10.26435/uc.v0i1(38).545">https://doi.org/10.26435/uc.v0i1(38).545</a>.