This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). The study was supported by the statutory funds of the Faculty of Natural Sciences of the University of Silesia in Katowice Mały Projekt 2020. This study was also partly supported by the Research Excellence Initiative (Inicjatywa Doskonałości Badawczej edition 2020) of the University of Silesia in Katowice. |