1. Global smartphone installed base forecast by operating system for 88 countries: 2007 to 2017 (2012).
https://www.strategyanalytics.com/default.aspx?mod=reportabstractviewer&a0=7834
2. Android under siege: Popularity comes at a price (2012).
http://www.trendmicro.com/cloud-content/us/pdfs/security-intelligence/reports/rpt-3q-2012-security-roundup-android-under-siege-popularity-comes-at-a-price.pdf
3. Mobile threat report q4 2012 (2012).
http://www.f-secure.com/static/doc/labs_global/Research/MobileThreatReport
Q4 2012.pdf
4. Mcafee threats report: Third quarter 2012 (2012).
http://www.mcafee.com/it/resources/reports/rp-quarterly-threat-q3-2012.pdf
5. The nemesys project (2012).
http://www.nemesys-project.eu/nemesys/index.html