1. World Health Organization (2002) Active ageing—a policy framework. A contribution of the World Health Organization to the Second United Nations World Assembly on Ageing, Madrid, Spain
2. Centers for Disease Control and Prevention (2013) The state of aging and health in America 2013. Atlanta, GA: Centers for Disease Control and Prevention, US Department of Health and Human Services
3. http://www.helpage.org/global-agewatch/ . Accessed 26 April 2015
4. World Health Organization (2012) Are you ready? What you need to know about ageing. World Health Day 2012. http://www.who.int/world-health-day/2012/toolkit/background/en/ . Accessed 25 April 2015
5. Canada’s Aging Population (2013) The municipal role in Canada’s demographic shift. Federation of Canadian Municipalities, Ottawa