Berkowitz M., Takats S., Karcher S., 2016; adaptation to the requirements in Ukraine by Kalmykov O. O., 2022: Variant with square brackets (“[…]”) of references in the text instead of the original round brackets: https://1drv.ms/u/s!ApCV1TbtV_n8s9NKpJ4gWUonsd4Cig?e=btHZ76; Option as in p. 1, with the inclusion of DOI in the bibliographic reference: https://1drv.ms/u/s!ApCV1TbtV_n8tJcbwlPY31SXowt62w?e=61dcQy; Option as in item 1, […]