1. DETR (1995), The Building Regulations 1991: Conservation of Fuel and Power, Approved Document L, The Stationery Office, p. 71.
2. Gill, V.D. and Wyatt, D. (1999), Recovery, Restoration or Preservation of An Engineered Past, UNESCO, Gdansk, Poland, p. 8.
3. Howard, N. et al. (1999), BRE Methodology for Environmental Profiles of Construction Materials, Components and Buildings, BRE, CRC, UK, p. 65.
4. Martin, J. (1998), The Great Transition Using the Seven Disciplines of Enterprise Engineering, American Management Association, p. 495.
5. Wyatt, D.P. (1999), “Securing sustainable building and resource management through the procurement of serviceability”, in Lacasse and Vanier (Eds), 8dbmc Proceedings, Vol. 3, Vancouver, 1893‐1903, NRC.CNRC.