id	domain	url
issue-320	dx.doi.org	http://dx.doi.org/10.30525/2256-0742/2017-3-5-469-473
issue-320	e-koncept.ru	http://e-koncept.ru/2016/76068.html
issue-320	cyberleninka.ru	https://cyberleninka.ru
issue-320	documents.epo.org	http://documents.epo.org/projects/babylon/eponot