1. Federal Bureau of Investigation 2011 Crime in the United States, 2010 http://www.fbi.gov/about-us/cjis/ucr/crime-in-the-u.s/2010/crime-in-the-u.s.-2010/property-crime
2. An investigation into the fundamental regularities of co-offending for violent and property crime classifications;Andreson;Canadian Journal of Criminology & Criminal Justice,,2012
3. Co-offending and the choice of target areas in burglary;Bernasco;Journal of Investigative Psychology & Offender Profiling,,2006