1. Polish Energy Policy until 2040, available online: https://www.gov.pl/web/klimat/polityka-energetyczna-polski, access 20.April.2023.
2. Estimation of monthly Angström –Prescott equation coefficients from measured daily data in Toledo, Spain;Almorox;Renew. Energy,2005
3. Cluster Strategies for the North Sea the Offshore Wind Service Sector. A Sectoral Innovation System Foresight;Andersen,2016
4. COM/2023/160 content/EN/TXT/?uri=CELEX %3A52023PC0160, access 20.April.2023.
5. Rare earth elements: a review of applications, occurrence, exploration, analysis, recycling, and environmental impact;Balaram;Geosci. Front.,2019