1. Intelligent Energy Europe, Support for sustainable energy solutions; http://ec.europa.eu/energy/intelligent (Accessed 7 December 2016).
2. Energy Performance of Buildings Directive 2010/31/EU; http://eur-lex.europa.eu/legal-content/en/TXT/?uri=celex%3A32010L0031 (Accessed 7 December 2016).
3. A Review of Methods Applied by the U.S. Geological Survey in the Assessment of Identified Geothermal Resources;Williams,2008
4. A protocol for estimating and mapping the global EGS potential;Beardsmore;GRC Trans.,2010
5. A theoretical study of heat extraction from aquifers with uniform regional flow;Gringarten;J. Geophys. Res.,1975