1. R-D energy, energy savings in buildings,1980
2. CO2-bedingte Klimaprobleme-ein neues Motiv für Energieeinsparung;Gertis;IBP Mitteilung,1989
3. CIB W67, New Opportunities for Energy Conservation in Buildings-putting the Results of a Decade of Research into Practice, Bulleting no 153, The Royal Institute of Technology, Sweden, 1988, 119 p.
4. Insulation;Cornish;The Journal of the Chartered Institution of Building Services Engineers,1985
5. An analysis of the difference between measured and predicted energy savings when houses are insulated;Sanders,2008