1. Fenger Jes, Halsnæs Kirsten, Larsen Hans, Schroll Henning, Victor Vidal Nordic Council of Ministers, 1991. Henning environment energy and natural resource management. In: Proceedings of the Baltic region-3rd international conference on system analysis. Science. 1991.
2. CO2 emissions from fuel combustion highlights;International Energy Agency,2014
3. Small and micro combined heat and power (CHP) systems, advanced design, performance, materials and applications;Beith.,2011
4. Solid oxide fuel cell systems for residential micro-combined heat and power in the UK: key economic drivers;Hawkes;J. Power Sources,2005
5. Cost-effective operating strategy for residential micro-combined heat and power;Hawkes;Energy,2007