Peel, Nancye May, Chan, Kah Wai, Hubbard, Ruth Eleanor 2015. Outcomes of cognitively impaired older people in Transition Care. Australasian journal on ageing. 34 (1) 53-7.
Langlois, L, Martin, Lynn 2008. Relationship between diagnostic criteria, depressive equivalents and diagnosis of depression among older adults with intellectual disability. Journal of Intellectual Disability Research. 52 (11) 896-904.