1. Kinsella K, Velkoff VA: An aging world: 2001. US Bureau of Census, US (ed): International Population Reports. 2001, Washington, DC: Government Printing Office, 1-183.
2. Federal Statistical Office, Bundesamt für Statistik: Pflegestatistik 2005 - Pflege im Rahmen der Pflegeversicherung - Deutschlandergebnisse. Wiesbaden. 2007
3. Gaugler JE, Duval S, Anderson KA, Kane RL: Predicting nursing home admission in the U.S: a meta-analysis. BMC Geriatrics. 2007, 7-13.
4. Luppa M, Luck T, Brähler E, König H-H, Riedel-Heller SG: Prediction of Institutionalization in Dementia - A Systematic Review. Dementia and Geriatric Cognitive Disorders. 2008, 26: 65-78. 10.1159/000144027.
5. Luppa M, Luck T, Weyerer S, König H-H, Brähler E, Riedel-Heller SG: Prediction of Institutionalization in the Elderly. A systematic review. Age and Ageing. 2010, 39: 31-38. 10.1093/ageing/afp202.