1. A Database-Centric Architecture for Home-Based Health Monitoring;De Morais,2013
2. Home Care in Europe: The Solid Facts;Tarricone,2008
3. Angels of the night: Evening and night patrols for homebound elders in Sweden;Malmberg;Gerontologist,2003
4. Trygg om natten;Thörner,2011
5. World Population Prospects: The 2012 Revision, Key Findings and Advance Tables (Working Paper No. ESA/P/WP.227)http://esa.un.org/wpp/index.htm