1. Energy statistical country datasheets, Brussels: European Commission, July 2019. https://ec.europa.eu/eurostat/web/energy/data/energy-balances
2. Clean energy for all Europeans package, Brussels: European Commission. https://ec.europa.eu/energy/en/topics/energy-strategy-and-energy-union/clean-energy-all-europeans
3. Energy consumption in households, Brussels: Eurostat, May 2019. https://ec.europa.eu/eurostat/statistics-explained/index.php/Energy_consumption_in_households
4. C.A. Balaras, E.G. Dascalaki, K.G. Droutsa, M. Micha, S. Kontoyiannidis, A.A. Argiriou, Energy Use Intensities for Non-Residential Buildings, pp. 369–389, 48th International HVAC&R Congress and Exhibition, 408 p., SMEITS – KGH Srbije, Belgrade, Serbia, 6–8 December, 2017. https://izdanja.smeits.rs/index.php/kghk/issue/view/300
5. Embodied energy of buildings: a review of data, methods, challenges, and research trends;Azari;Energy Build.,2018