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2. Principles for Nearly Zero-Energy Buildings;Ecofys,2011
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4. Directive 2012/27/EU of the European Parliament and of the Council of 25 October 2012 on energy efficiency;European Parliament;Official Journal of the European Union,2012
5. Life cycle primary energy implication of retrofitting a wood-framed apartment building to passive house standard;Dodoo;Resources, Conservation and Recycling,2010