id	domain	url
issue-262	dx.doi.org	http://dx.doi.org/10.30525/2256-0742/2017-3-5-19-24
issue-262	www.ukrstat.gov.ua	http://www.ukrstat.gov.ua
issue-262	www.ukrstat.gov.ua	http://www.ukrstat.gov.ua
issue-262	web.unitn.it	http://web.unitn.it/files/download/19156/wp162008mattheeandnaude.pdf
issue-262	www.ukrstat.gov.ua	http://www.ukrstat.gov.ua