https://www.vedomosti.ru/library/news/2006/08/16/dostignuta-predvaritelnaya-dogovorennost-po-sotrudnichestvu-rf-i-ukrainy-v-gazovoj-sfere?utm_source=telegram&utm_campaign=share&utm_medium=social&utm_content=dostignuta-predvaritelnaya-dogovorennost-po-sotrudnichestvu-rf-i-ukrainy-v-gazovoj-sfere