id	domain	url
issue-469	doi.org	https://doi.org/10.30525/2256-0742/2018-4-3-372-378
issue-469	wps.aw.com	http://wps.aw.com
issue-469	i.kpi.ua	http://i.kpi.ua
issue-469	doi.org	https://doi.org/10.30525/2256-0742/2018-4-1-219-226
issue-469	www.ukrstat.gov.ua	http://www.ukrstat.gov.ua