1. Cullen, K. & Moran, R. (1992). Technology and the elderly (Commission of the European Communities, Report EUR 14419 L2920L). Luxembourg: Office for Official Publications of the European Commissions.
2. Czaja, S. J. (1999, October). The future of ageing and the societal impacts of technology. Keynote lecture presented at the Third International Conference of Gerontechnology, Munich, Germany.
3. A Human Factors Analysis of ADL Activities: A Capability-Demand Approach