1. Renewables outlook 2007. MSc Dissertation;Biamonti,2008
2. Billman L., Basoli D., 2012. Energy input-output calculator user guide, national renewable energy laboratory technical report (NREL)/TP-6A20-55584, June, Available from: http://www1.eere.energy.gov/analysis/iocalc/docs/combined_userguide_ML_6-19-12.pdf Accessed 4.12.14
3. Breitschopf, B., Nathani, C., Resch, G., 2012. ‘Economic and industrial development’ EID-EMPLOY. Methodological guidelines for estimating the employment impacts of using renewable energies in electricity generation Available from: http://iea-retd.org/wp-content/uploads/2012/12/EMPLOY-Guidelines.pdf Accessed 4.12.14
4. DGEG, 2012. Security of supply in the national electricity system—monitoring report (in Portuguese) Available from: http://www.erse.pt/pt/consultaspublicas/consultas/Documents/49_1/RMSA-E%202012.pdf Accessed 13.1.16
5. DGEG, 2015. Available from: http://www.dgeg.pt Accessed 13.1.16.