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Acta Innovations > 2021 > no. 39 > 5--14
Acta Innovations > 2019 > no. 33 > 90--99
Environment Protection Engineering > 2006 > Vol. 32, nr 1 > 41-49
Acta Innovations > 2021 > no. 39 > 5--14
Acta Innovations > 2019 > no. 33 > 90--99
Environment Protection Engineering > 2006 > Vol. 32, nr 1 > 41-49