1. Smoking bullets. A technique useful in some bullet comparisons;David;The Journal of Criminal Law, Criminology, and Police Science,1965
2. A statistical study of the individual characteristics of fired bullets;Biasotti;Journal of Forensic Sciences,1959
3. AFTE 1982 Training Manual (Association of Firearm and Toolmark Examiners (AFTE)) www.afte.org
4. Theory of identification as it relates to toolmarks;AFTE;AFTE Journal,1998
5. AFTE 2001 Glossary (Association of Firearm and Toolmark Examiners (AFTE)) st nd rd th