1. Temperatures and heating energy in New Zealand houses from a Nationally Representative Study – HEEP;French;Energy and Buildings,2007
2. Window 6 (W6), Research Version (6.3.53) of the Thermal Simulation Software Provided by Lawrence Berkeley National Laboratories, Berkeley, California, USA. http://windows.lbl.gov/software/window/6/index.html, 2012 (accessed 13.11.12).
3. N. Smith, A cost benefit analysis of secondary glazing as a retrofit alternative for New Zealand Homes, Thesis Submitted for Degree of Master of Building Science, Victoria University of Wellington. Available from: http://researcharchive.vuw.ac.nz//handle/10063/1248, 2010 (accessed 18.01.11).
4. International Glazing Database (IGDB), Provided by Lawrence Berkeley National Laboratories, Berkeley, CA, USA. http://windows.lbl.gov/materials/IGDB/, 2012 (accessed 13.11.11).
5. Proposed method for measuring the thermal properties of windows in the new BRANZ guarded hotbox;Cox-Smith;Proceedings of the IPENZ Annual Conference,1997