6Zuzanna Brozek-Mucha,Grzegorz Zadora. Grouping of ammunition types by means of frequencies of occurrence of GSR[J].Forensic Science International,2003.97-104.
7Nick Lewer. Non-lethal weapons:operational and policy developments[J].THE LANCET Extreme medicine,2003.362.
8Agnieszka Jankowicz,Zuzanna Brozek-Mucha. Evaluation of the possibility of differentiation between various types of ammunition by means of GSR examination with SEM-EDX method[J].Forensic Science International,2001.39-47.
9Jian S Dai,Duanling Li. Mobility analysis of a complex structured ball based on mechanism decomposition and equivalent screw system analysis[J].Mechanism and Machine Theory,2004.445-458.