1. Bakker R (1997) Elderdesign: designing and furnishing a home for your later years. Penguin Books, New York, NY, US
2. Center for Universal Design (2000) Affordable and universal homes: a plan book. North Carolina State University, NC, US
3. Center for Universal Design (2007a) Residential rehabilitation, remodelling and universal design. North Carolina State University, NC, US. Available at: www.design.ncsu.edu/cud/ (Accessed on 23 September 2007)
4. Center for Universal Design (2007b) Gold, silver and bronze universal design features in houses. North Carolina State University, NC, US. Available at: www.design.ncsu.edu/cud/ (Accessed on 23 June 2007)
5. Coleman R, Pullinger DJ (1993) Designing for our future selves. Applied Ergonomics, 24: 3