1. Standard for Barrel and Overall Length Measurements for Firearms;National Institute of Standards and Technology,2018
2. Effect of shortening the barrel in contact shots from rifles and shotguns;Perdekamp;Int. J. Legal Med.,2008
3. Firearms and tool marks;Houck,2015
4. Shotgun ammunition on a target;Bonfanti,2013
5. Shooting Incident Reconstruction;Haag,2011