1. The origin of class characteristics: an empirical investigation of a major principle in forensic document examination;Simner;J Forensic Doc Exam,1998
2. A consideration of the theoretical basis of forensic handwriting examination;Found;Int J Forensic Doc Examiners,1998
3. Handwriting Identification
4. Class characteristics of hand printing;Schuetzner;J Am Soc Questioned Doc Examiners,1999
5. Investigation of class characteristics in English handwriting of the three main racial groups: Chinese, Malay and Indian in Singapore;Cheng;J Forensic Sci,2005