Links[1] https://www.iai.it/en/node/12013 [2] https://www.dw.com/ru/kogda-dostrojat-severnyj-potok-2-i-zarabotaet-li-on-prognozy-evropejskih-jekspertov/a-54470175 [3] https://www.iai.it/en/persone/marco-giuli