1. Trace DNA: a review, discussion of theory, and application of the transfer of trace quantities of DNA through skin contact;Wickenheiser;J. Forensic Sci.,2002
2. Retrieval of DNA from touched objects;Van Oorschot,1998
3. Recovery of trace DNA and its application to DNA profiling of shoe insoles;Bright;Forensic Sci. Int.,2004
4. Perkin Elmer Corporation AMPFlSTR®SGMPlus™ PCR Amplification Kit User's Manual, 1999.
5. S. Stouder, K. Reubush, D. Hobson, J. Smith, Trace evidence scrapings: A valuable source of DNA? Forensic Sci. Commun. [Online] 3 (4) (October 2001). Available: http://www.fbi.gov/hq/lab/fsc/backissu/oct2001/stouder.htm.