id	domain	url
issue-278	dx.doi.org	http://dx.doi.org/10.30525/2256-0742/2017-3-5-151-156
issue-278	ec.europa.eu	http://ec.europa.eu/growth/smes/businessfriendly-environ-ment/sme-definition_en
issue-278	zakon3.rada.gov.ua	http://zakon3.rada.gov.ua