Ines Karagianni-Ladasic (2017). DE-DOLLARIZATION OF OIL AND GAS TRADE. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining, 99-106. https://doi.org/10.5593/sgem2017h/15/s06.013