Oliveira, Carla, Dulce Coelho, and Patrícia Pereira da Silva. 2014. “A Prospective Analysis of the Employment Impacts of Energy Efficiency Retrofit Investment in Portugal by 2020”. International Journal of Sustainable Energy Planning and Management 2 (June). Aalborg, Denmark:81-92. https://doi.org/10.5278/ijsepm.2014.2.7.