1. European Commission: Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions. A Renovation Wave for Europe - greening our buildings, creating jobs, improving lives. COM 662 (2020)
2. Federal Ministry for Economic Affairs and Energy: Energy solutions made in Germany. BMWi, Berlin (2018)
3. European Commission: Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions. Fit for 55’: delivering the EU’s 2030 Climate Target on the way to climate neutrality. COM 550 (2021)
4. European Labour Authority: Eures, report on labour shortages and surpluses. ELA, Luxembourg (2022)
5. European Centre for the Development of Vocational Training (CEDEFOP). Skills Forecast. https://www.cedefop.europa.eu/en/publications-and-resources/data-visualisations/skills-forecast. Accessed 10 May 2023