1. Energy systems;Hudson,2008
2. Alternative Energy Sources;Michaelides,2012
3. Sustainable development goals—energy access;Nations,2021
4. Photovoltaics and wind status in the European Union after the Paris Agreement;Arantegui;Renew. Sustain. Energy Rev.,2018
5. The European green deal;Fetting;ESDN Report, December,2020