Pen Pressure in Chinese Handwriting

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Kao H. S. R. Shek D. T. L. (1986) Modes of handwriting control in Chinese calligraphy: some psychophysiological explorations. In Kao H. S. R. Hoosain R. (Eds.), Linguistics, psychology and the Chinese language. Hong Kong: Centre of Asian Studies, Univer. of Hong Kong. Pp. 317–333.

Kao H. S. R. Smith K. U. Knutson R. (1969) An experimental cybernetic analysis of handwriting and penpoint design. Ergonomics, 12, 453–458.