Haakonsson S, Jørgensen BH, Chen G, Zhao H. 1. Introduction and background. In: Holst Jørgensen B, Haakonsson S, Zhao H, Chen G, eds. The SDC International Report 2020 : Cooperating for Energy Transition. Rapporter. Aarhus Universitet; 2020:8. doi:10.7146/aul.395.143