1. Structure in on-line documents;Jain,2001
2. Design and analysis of delimiters for selection-action pen gesture phrases in scriboli;Hinckley,2005
3. On-line and off-line handwriting recognition: a comprehensive survey;Plamondon;IEEE Trans. Pattern Anal. Mach. Intell.,2000
4. FontGod Corperation, 〈http://www.fontgod.com/〉.
5. C.C. Tappert, Handwriting synthesis of a particular writer's style, 〈http://csis.pace.edu/ctappert/research/researchtopics.htm〉.