Science and Innovation, 2021, No 4 http://dspace.nbuv.gov.ua:80/handle/123456789/184943 Sat, 25 Apr 2026 07:43:16 GMT 2026-04-25T07:43:16Z Science and Innovation, 2021, No 4 http://dspace.nbuv.gov.ua:80/bitstream/id/553345/ http://dspace.nbuv.gov.ua:80/handle/123456789/184943