1. International Energy Agency. World Energy Outlook 2021 (2021)
2. International Energy Agency. Tracking Industry 2021. Paris (2021)
3. International Energy Agency. Iron and Steel (2021)
4. m’barek, B.B., Hasanbeigi, A., Gray, M.: Global steel production costs. In: A Country and Plant-Level Cost Analysis (2022)
5. Danish Energy Agency. Danish Climate Policies (2023)