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2. The performance of small scale multi-generation technologies in achieving cost-optimal and zero-energy office building solutions
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4. Guidelines Accompanying Commission Delegated Regulation (EU) No 244/2012 of 16 January 2012 Supplementing Directive 2010/31/EU of the European Parliament and of the Council on the Energy Performance of Buildings by Establishing a Comparative Methodology Framework for Calculating Cost Optimal Levels of Minimum Energy Performance Requirements for Buildings and Building Elements;Off. J. Eur. Union,2012
5. National Reports on Energy Performance Requirementshttps://ec.europa.eu/energy/en/topics/energy-efficiency/buildings