id	domain	url
issue-734	doi.org	https://doi.org/10.30525/2256-0742/2019-5-5-32-38
issue-734	mtu.gov.ua	https://mtu.gov.ua
issue-734	ports.com	https://ports.com/en
issue-734	knowledge.allbest.ru	https://knowledge.allbest.ru
issue-734	portsinfo.ru	https://portsinfo.ru
issue-734	londonmania.ru	https://londonmania.ru