id	domain	url
issue-607	doi.org	https://doi.org/10.30525/2256-0742/2019-5-1-112-117
issue-607	europerails.ru	https://europerails.ru/perspektivy-razvitiya-zheleznyx-dorog-v-evrope
issue-607	www.ey.com	http://www.ey.com
issue-607	ec.europa.eu	https://ec.europa.eu/transport/themes/infrastructure/news/2017-06-23-2016-cef-call_en
issue-607	ec.europa.eu	https://ec.europa.eu/transport
issue-607	www.mckinsey.com	https://www.mckinsey.com/~/media/mckinsey/industries/capital%20projects%20and%20infrastructure
issue-607	www.pwc.com	https://www.pwc.com/gx/en/transportation-logistics/pdf/assessing-global-transport-infrastructure-market.pdf
issue-607	www.dot.state.oh.us	https://www.dot.state.oh.us
issue-607	ppp.worldbank.org	https://ppp.worldbank.org/public-private-partnership
issue-607	ppi.worldbank.org	http://ppi.worldbank.org/~/media/giawb/ppi/documents/data-notes/transport-sector-update-2015